I remember doing this in high school, but that was 30 years ago. I am glad this channel explains it well. My teacher I had didn't do as well. I got an A in the class, but I never really understood what I was doing. I remember looking up on a chart to find out the degree. Could you do a video explaining how that number is calculated instead of just using a chart? Thank you in advance.
@somnathchapagain8969Ай бұрын
I am glad that I learned how to find an angle with the help of your clear instruction. Thank you so much for your presentation.
@yorforger81012 жыл бұрын
Hello, back in the 80's i was in hi school cabarrus catholic college in neg occ ph. I still remembered those abreviations of sine ,cosine and tangent. Calculator was scarce we use the list in a little book trigonometric table.. it was awesome and challenging..
@jonathanbush61972 жыл бұрын
I dug out my slide rule to see if I remembered how. It took me a while to realize that the T scales were themselves the degree values, and the tangent value is to be found on the C scale. So T is the arc tangent of C, once you figure out which T scale is the appropriate one. I got more than 3 significant digits, but not quite 4.
@martinmaltbor12902 жыл бұрын
I learned more about trigonometry here than I did in high-school and my high school years were a long time ago about 40 years ago to be specific.
@jennyg.2252 жыл бұрын
this guy probably is the best math teacher...his students are lucky but they probably don't realize that
@collinschiluba60942 жыл бұрын
I interested
@davidlim74102 жыл бұрын
He is teaching the use of calculator instead of teaching Trigonometry.
@binladen34444 Жыл бұрын
HHHHHmjHHHH
@binladen34444 Жыл бұрын
HHHHHmjHHHH
@DEATHWISHVQ4 ай бұрын
There hhhhhhhh
@tomdixon12132 жыл бұрын
I really appreciate the simplicity of your lesson. When I was in grade 12 43 years ago, they made it so complex. Just tell us how it is done was what i wanted to blurt out. Thank you. What angle does tan sove or?
@GreytOutdoorsMedic Жыл бұрын
Is there a way to calculate the inverse tan without a scientific calculator, I am hoping there is a way to work out my latitude by measuring the length of a shadow at solar noon? TY.
@teofilodaquipil41002 жыл бұрын
He is a very good teacher. Thank you very much. How about if we forgot to bring calculator and no calculator available around. How to solve it without using calculator?
@robpatterson2861 Жыл бұрын
I love trig and I love you too John!
@bulwinkle2 жыл бұрын
When I was learning these functions we had no calculators, we had books of trig and log tables.
@argonwheatbelly6372 жыл бұрын
Yep, I grew up with tables.
@li2us2 жыл бұрын
ditto
@haizahakipe191 Жыл бұрын
You just solved my problem. Thanks much
@chrisatkins79592 жыл бұрын
I wish I would have been in your class. I had a scientific calculator but had no clue how to use the thing. I dropped trig in college. I’m learning now so maybe I can help my grandkids when the time comes.
@nathanielnkomo22952 жыл бұрын
Easy to understand
@MrFritz69404 ай бұрын
@Tabletclass Math how do you find tang without a calculator?
@GG-xs8vt2 жыл бұрын
Just came across this video. What does the 5 and 3 mean. Degrees,etc. Can you use different numbers. Beginner.
@jamesburrows54042 жыл бұрын
FOCUS ON THE WHY? I’m 59 and l agree w most of the posts…”wish l had him as a Math teacher.” Respectfully,kick it up a notch! If you want real IMPACT (however u want to measure it), spend an equal amount of time on what most students are puzzled by on WTF does it matter. Get people to love/yearn math/science’s. Show them how (examples) it impacts life as they would know it. That’s the magic! Again, at 59 with a smaller window of time, there’s a greater appreciation, a hunger for “ what l don’t know…but should.) 😉
@bebot20142 жыл бұрын
how I wish I had teachers who were good at explaining as you do
@lovernotfighter2 жыл бұрын
I learned how to do this many years ago but with my new calculator I just watched the video to figure out the keys on the darn thing.
@raymondkodzwa90182 жыл бұрын
Thanks it really works
@argonwheatbelly6372 жыл бұрын
x=arctan(3/5) about five seconds to read and answer
@peterjohnson31362 жыл бұрын
3,4,5, 90deg 60deg 30deg are the angles here. Used to layout squares etc in engineering and building etc. Great thing to know.
@peterjohnson31362 жыл бұрын
Can also use multiples say like 6,8,10.
@gmcenroe2 жыл бұрын
Ha ha this is not a 3,4 5 triangle it is a 3,5,h triangle h=sqr(9+25) which does not equal 6 but it is close, it is not a 30,60,90 degree right triangle, lol
@starpawsy2 жыл бұрын
FInd the angle? There it is, in the left hand corner. It's marked with a big 'x'. You cant miss it.
@lawrencerasmus2 жыл бұрын
I did sheet metal layout and had a little pocket book with a chart but didn't have a calculator , non scientific, until 1971 . I bought it a jc Penny's for $75. Just did basic math . I was working with tool and die makers also . The owner said what are you going to do with a calculator but when he saw how fast I could figure things he required everyone to have one .
@theresabeharry81972 жыл бұрын
Can U please do one by finding the side
@danielcase10462 жыл бұрын
that is totally mind blowing for me
@kevin_g11642 жыл бұрын
So tan^-1(0.6) is acceptable without a calculator?
@BAlavi-tl5sg2 жыл бұрын
Not so sure about 30.96 degrees! Why? O = 3 A=4 H=5 is a known, given "right angle" triangle of 30, 60, 90 degrees. In this case, project the two triangles over (a=4 over A=5) where you can see the 30 degree triangle is inside, therefore 30 degree angle will be a larger number than the angle in question.
@jezchel2 жыл бұрын
Remember in this problem H=√34 and still a right triangle
@evanbright61052 жыл бұрын
The hypotenuse isnt 5 its sqrt(35) thats why
@richardprincipal72412 жыл бұрын
@@jezchel 5.83
@bwr3rd2 жыл бұрын
@@jezchel No, H = 6, which is the sq root of 36
@problactive2852 жыл бұрын
@@bwr3rd 25+9=34 not 36.
@mohadelassi60792 жыл бұрын
Tan@= rise over the run Tan@= 3/5
@smithfamily-ut9lg10 ай бұрын
Thank you so very much ❤️❤️❤️
@danielcase10462 жыл бұрын
Have you ever played dungions of dagereth? radieo shake
@JohnAnderson-mu1kr2 жыл бұрын
What is the formula to find the angle without the use of the calculator, first principle tuition is the best for understanding. Appreciate.
@rogerwatkins85572 жыл бұрын
Oscar had a heap of apples and scat opp over hyp. adj over hyp. opp over adj. sine cosine tangent. that's how i learned it.
@ronsinglrtonjr90195 ай бұрын
When tan is .6 why have to use arctangent?
@bretgreen53142 жыл бұрын
Great one
@SidneyPratt2 жыл бұрын
Thanks.
@davidhandyman7571 Жыл бұрын
I am old school. I use trigonometry tables and not a calculator. That way I know what I am doing and get degrees, minutes, and seconds. I left High School in 1971.
@williammarrero4184 Жыл бұрын
I had to watch this video three times to understand the operation
@warren314473 ай бұрын
On I phones to get to the scientific calculator, select the standard calculator and then rotate 90 degrees clockwise and the scientific calculator appears.
@reyanmohammed93602 жыл бұрын
Cool geometry
@thomasgertsch41712 жыл бұрын
Why not do a triangle 3 4. 5 so one can check wether one is doing the right thing with simple trig ? That angle is 36.87 or easier 37 degrees …..just a thought
@danielcase10462 жыл бұрын
why should i try and understand all the things inside the tv set as long as i can push a button and make it come on?
@danielcase10462 жыл бұрын
@banjoman5792 жыл бұрын
Your “this here and that there “ expressions really do fracture the basic English grammar rules.
@b213videoz Жыл бұрын
arctang(x) = 3/5 = 30.96
@jaytea76392 жыл бұрын
I always used the Sally/Oscar slogan to remember the Sin, Co-sin, Tangent formulas.
@wongcy7132 жыл бұрын
Pythagoras and then sin or tangent table. Learned that in my 7th year. So why is this even a subject 50 years later.
@argonwheatbelly6372 жыл бұрын
Ummm... you don't need Pythagoras, and you don't need a Sin table. You do need a Tan table, even the small ones at the back of a basic trig book.
@wongcy7132 жыл бұрын
@@argonwheatbelly637 Tks . Realise that after pressing "send". In any case wonder how many other caught that
@kohan20502 жыл бұрын
X = arctg 3/5
@Micro-Moo2 жыл бұрын
Yes, and why all this show then? Total fake, to my taste... The author tries to say something, having nothing to say.
@johntaylor59682 жыл бұрын
Good intentions but hopelessly long winded. Makes it sound far more complex than it is. Norwegian kids have this mastered at 9 years old.
@danielcase10462 жыл бұрын
45%
@stevew27810 ай бұрын
This could have been a 3 minute video with a 30 second intro
@miles9765 ай бұрын
Thabk you
@danieldennis9831 Жыл бұрын
If you use a tangent table it tells you that it's about 30.95°
@adgf1x2 жыл бұрын
X=tan inverse (3/5).ans
@woodybear82982 жыл бұрын
@6:26, and we still haven't started. Please get on with it.
@cluek97802 жыл бұрын
Gotta say, “0.6” is better for kids to keep straight
@danielcase10462 жыл бұрын
70 %
@thomaslali7052 жыл бұрын
Great 👍
@danielcase10462 жыл бұрын
no. I agree, mathematics is a very interesting subject.
@KalvenJones4 ай бұрын
I'm neutral on this video. If you are lost about this subject then K-han is a good resource. ❤❤❤❤❤
@syedmdabid71912 жыл бұрын
x°= arctan 3/5 Ans.
@BennyCFD2 жыл бұрын
Sure, that's all well and good but how do I find the angle using my head and a piece of paper and a pencil.
@davidstout62642 жыл бұрын
When he solves for the other angle let's see him prove it is a right triangle. In order to be a right triangle the hypotnus should have been 5 and the side that's 5 should have been 4
@invictus99762 жыл бұрын
My preferred methodology was always trigonometry, my fellow students usually had a hard time with it and used The Pitágoras theorem, which I despised, go figure.
@RoyalPigeon3693 ай бұрын
Useless bit: 0:00 - 7:40 Main part: 7:40 - end of video
@danielcase10462 жыл бұрын
we already know all the basics
@ra158995502 жыл бұрын
30 deg. 57min.
@trevsmith46056 ай бұрын
Why do people always do triangles in most houses the walls etc are off square or off oblong which ya need to know the angles. This is too complicated
@KalvenJones4 ай бұрын
Explains some things yes, but didn't explain the missing parts or video could have been shorter.
@robertakerman35702 жыл бұрын
It's disappointing; it that My beliefs were : 30, 60 & 90.(3, 4 & 5 Rt. Triangle). Everything I know is wrong(ha-ha).
@chaoticstarfish34012 жыл бұрын
It's not a 3, 4, 5 triangle. It would be if the hypotenuse was 5, not the adjacent side. The hypotenuse here is sqrt(34).
@robertakerman35702 жыл бұрын
@@chaoticstarfish3401 Thx Makes more sense now
@antiqueexcavator94032 жыл бұрын
My iPhone doesn’t have tan-1
@frankorodz67032 жыл бұрын
I don't know but I can see three angles, that's why they call it triangle!! Thah!!!
@sgoogle112 жыл бұрын
30 dgree
@chip1pan2 жыл бұрын
Too complicated. Can't understand devision like that 3 / 5 like a foreign language. But my guess without alk the complicated trig bollox is x=30° 60° and 90°
@robertdillardjr.98802 жыл бұрын
Or Spelling? (Division)
@dwaipayandattaroy98012 жыл бұрын
30°
@neill3922 жыл бұрын
Silly-old-hens-can't-always-have-their-own-acorns. Or Tommy-on-a-ship-overboard-his-coat-and-hat. 50 years since I learned that, might even have a set of log tables somewhere, not used them in decades.
@larrycates76552 жыл бұрын
As usual a math teacher thinks everyone is stupid but them .
@argonwheatbelly6372 жыл бұрын
This is simply a review / help video. You have issues.
@larrycates76552 жыл бұрын
You bet I do . I never met anyone that was a math expert that didn't think they were better than anyone .
@audreydaleski10672 жыл бұрын
Easy peezy. Side side
@maryannashaw59882 жыл бұрын
I don't know where you got 30.96 , I still got 0.6 Smh Lol 😄
@norbertneri68022 жыл бұрын
i learned nothing
@onlineclass8729 Жыл бұрын
Same
@MaddieByan11 ай бұрын
Gg
@dan34goodwin10 ай бұрын
To be fair it's more useful for revision. If you're learning from scratch then it maybe confusing for some.
@robertdillardjr.98802 жыл бұрын
I know you like to simplify like the bowtie method. Have you ever taught Some People Have, Curly Black Hair, Through Propetetuial Brushing? That's all 3 formulas for right angles.
@ken_eszu6 ай бұрын
✨
@juniewindsor-ji7gg Жыл бұрын
To much talking about non relative info
@chandrur68102 жыл бұрын
Not worth. !
@mylestobin25302 жыл бұрын
You get a protractor and measure it
@runforrestrun19652 жыл бұрын
Sorry but still couldnt follow it and i had a calculator….
@danielcase10462 жыл бұрын
math is too complicated for my mind
@luckywomenchannel82382 жыл бұрын
😍😍😍😍
@lavios1622 жыл бұрын
no calculator please
@RouteG11 ай бұрын
Bro is not a good influencer
@santhoshkumar-fm7rf2 жыл бұрын
What a pitty 😜😜
@jimwalsh85202 жыл бұрын
Math???? The word is Mathematics! Plural bacause there are many facets. Math??? Learn to speak ENGLISH