Verifying a trigonometric identity with multiple steps

[@noobsluckyday1325]

im doing independent highschool right now and find your videos help me alot. Although learning is subjective i think most kids appreciate when teachers convey there rational and steps in a visual whiteboard style. Thank you for uploading :)

[@brianmclogan]

Happy to be able to help you out! keep up the hard work!

[@vanshkasturi6879]

Dude...this is helping me all the way over here in 🇮🇳

[@SealedbyWisdom]

yea bro

[@deletedaccount567]

Never stop posting these videos. Thank you!

[@mckennacartt5507]

this lecture taught me more than my professor taught me in the whole class period. amazing

[@brandonhofman]

Bro this was literally the problem on my test thx for the help home boy

[@kippie2293]

Nice comment man

[@CAT-2323]

I was super stressed out about my trig test, but now I feel so much better thank you so much!

[@brianmclogan]

you are very welcome! happy to be able to help you out!

[@CAT-2323]

I passes it! I made a 96!

[@michaelvalentine3245]

@@CAT-2323 hurrayyy🥳🥳🤭

[@Дэни-д6ю]

Thx 4 the headache

[@maalikserebryakov]

so with regard to the specific issue of proving trigonometric identities, the basic approach is to 1,) combine the side with more terms: 2.) Assess the other side, if it contains tans, or cots, or not. 3.) if no -> Convert all tans and cots on the working side into sin/cos and cos/sin 4.) if yes -> Leave the tans and cots on the working side, and write sin/cos and cos/sin as tan and cot

[@mansoirvahid6546]

Thank you for this type of teaching course

[@jonasan287]

I wish I could borrow your brain during my exams

[@gam701]

I still don't understand how you're able to multiply the top and the bottom by cosx

[@brianmclogan]

as long as you multiply the the same number you do not change the value of the fraction 3/4=(2/2)*(3/4)=6/8

[@gam701]

Brian McLogan ohh ok I see thx for the fast reply this really helped

[@jneal1347]

I just think of it as converting the tangents to get [(-sinx/cosx) *(cosx/1) /[1-(sinx/cosx)], then converting the denominator's 1 to cosx/cosx and multiplying across to get: [(-sinx*cosx) /cosx] /[(cosx-sinx) /cosx]

[@hey77457]

Heey bhagwan!!! 😂

[@alexboughlef9280]

Really appreciate the vids, this is probably the hardest part of trig/precalc for me and we keep moving on with the class so these vids really help

[@brianmclogan]

practice, practice, practice

[@km-sc4kz]

thanks for these videos, they're really helpful :)

[@brianmclogan]

awesome! happy to be able to help you

[@elliew.738]

This video was so helpful. Thanks so much!

[@florahmanganyi9835]

Thanks this helps a lot 😎😊😊

[@brianmclogan]

awesome! happy to be able to help you out!

[@vijay0954]

Very simple we wil get... Cosx(1 - 1/1-tanx) Cosx(1 - tanx -1)/1-tanx Cosx(-tanx)/1-tanx Cosx(tanx)/tanx-1 Cosx × (sinx/cox)/sinx÷cosx -1 Sinx÷sinx-cox/cosx Sinx cosx/sinx - cosx

[@nandakumarcheiro]

Thank you very much for the result.

[@jeliebonotan5447]

how to answer this kind of problem. sinx cscx tanx cotx=1 ?

[@takeone_do]

LHS: sinx cscx tanx cotx = sinx (1/sinx) tanx (1/tanx) = (sinx/sinx)(tanx/tanx) = 1*1 = 1

[@Algebrainiac]

Hi. So I am pretty good at these. But I have a question. I know it’s kind of late lol but is it okay if we work with both sides as long as we make them look identical. So if I were to make tan x in terms of sin x/ cos x and then just algebraically work it out so that both sides are equal… can that work? I don’t know… because that’s how I usually do it… let me know!! Thanks

[@karimiberouma7705]

Hi sir! is it okay if we multiply it with the numerator, instead of the denominator? bcoz in our module, it says either to multiply it with the numerator or denominator :)

[@suewaynegrossett1042]

Helpful what a relieve

[@brianmclogan]

happy to help!

[@alexpear4884]

I didn’t get the last part where the -1 canceled each other out and then turned into positive and suddenly the numerator was sinxcosx ??

[@crazygood1716]

youre the goat G!

[@SealedbyWisdom]

Really helpful..thank you

[@fadzaigracethamangani8427]

Thanks a lot !!

[@brianmclogan]

Very welcome!

[@NFTrizzz]

Thank you for the help

[@daidaidai6322]

Why the thumbnail is CsoX????

[@elizabethkesimolotsetshaba3385]

please help with proving the identity, CosX over SinX + SinX over CosX = CscXSecX

[@thomasmueller1606]

Literally watching this in the middle of a test bahahaha

[@brianmclogan]

Ohhh Sh&@#

[@RogerPro]

I'm so lost wth i tried my best until he started doing 3:58

[@jdm68]

Not sure if you still need it but if you're referring to when he converted to the tan to sin and cos its because tan = sin/cos

[@mathwithnour9780]

thank you sir

[@wolfpowergaming5308]

Yo do you know how to do this shit I'm lost and I have a quiz on this stuff in the morning

[@mathwithnour9780]

😁 i’m a math teacher now and i well explain this example to my students

[@wolfpowergaming5308]

@@mathwithnour9780 man wish I had a better teacher my teacher just slams this shit in our faces in one class then after expects us to know everything 🥴😵😵😵😵😵😵

[@mathwithnour9780]

😂😂 that’s what they do But i like this subject and i will try to make it easy for them 😜

[@wolfpowergaming5308]

@@mathwithnour9780 wish my teacher would she acts like everything needs ti be done in 5 minutes

[@vetiscon1276]

You have cso instead of cos on the cover page for the video

[@brianmclogan]

will fix, thanks

[@ImJustXO]

0:42

[@sarahku449]

How does cos(x) + sin(x) equal sin(x) - cos(x)??

[@brianmclogan]

it doesn't,

[@mark_tilltill6664]

Start out by converting to sin(x) and cos(x) using tan(x)= sin(x)/cos(x)

[@riyabawa5382]

#MathHelpers#MathHelpers#MathHelpers#MathHelpers

[@user-qy6tu9ip9v]

You lost me at 4:22.

[@seunghyun31614]

Thumbnail is cso x lol

[@mohammadshol7497]

I have 3 other ways to prove it

[@takeone_do]

can I see your other methods??

[@mohammadshol7497]

@@takeone_do sure, but not right now because I need to sleep. I will as soon as I can 😊

[@takeone_do]

@@mohammadshol7497 Aight... I can't wait for your reply xD

[@mohammadshol7497]

@@takeone_do kzbin.info/www/bejne/rpzNm5qKicx7rJo

[@mohammadshol7497]

@@takeone_do I'm really sorry for being late. Making a KZbin video isn't easy as I imagined. recording the video , trimming , editing ...... in addition to the stress and the tension I felt ( this is my first video ever ) , and my low internet upload speed ... all that took much time and that's why the video came late. I hope you enjoy the video :)

[@JorgeLopez-lw9zj]

It looks like he does not even know what he is saying. but thanks anyways.

[@brianmclogan]

why would you think that?

[@SprayAndPrayGaming]

nah idk what this dude's talkin about, the lesson was good

[@sambhavkumaryadav7305]

Why u are thinking that.