Grade 12 Algebra Lesson 3| Sequences and Series : Geometric Sequence

[@vukonamhangani2122]

God bless class of 2023😭💗💗💗

[@Amourrrr_]

Can I get a big AMENN

[@nomzamotinkyonnetmpala6842]

Sir u didn't show us the value of x and y

[@carolinenomahlubi5885]

Eyyy the matric of 2022 are blessed we get viedeos everyday🥳🥳🍾

[@MlungisiNkosi]

Yebooooooo.... Only doing my bit to help.

[@flexace768]

@@MlungisiNkosi thank you malume 🤲

[@dineontuli1341]

So grateful of you and the lessons that you give us. You have a way of making things easier for better understanding

[@MlungisiNkosi]

It is my pleasure. I want to see you do well and live to your potential

[@Anagracia_14]

Class of 2024 welcome 🎉

[@tsholofetsomanana5411]

👏👏👏 for soldiering with the paperless! It'll definitely get better with time when it comes to editing!

[@MlungisiNkosi]

Thank you Tsholo… Loving this comment ❤️

[@mmabontleelegant7571]

Hi sir. Question one says determine the values of x and y,not r😬😬😬

[@MlungisiNkosi]

🤣

[@lulamalurh6112]

@@MlungisiNkosi it easy now because we have the first term and our 😁😁

[@tintswalokhosa]

X=21 y=63❤

[@nomzamotinkyonnetmpala6842]

@@tintswalokhosa how did you do dat

[@j3ffrreeDahmer]

​​​@@nomzamotinkyonnetmpala6842enter the value of a & r in the geometric formula to get the general formula for the pattern [it should give you (7)(3)^n-1 ] ;then substitute T2 (x) and T3 (y) in the formula to get the answers (x=21 & y=63)

[@nonduduzodladla7636]

Hi sir At 12:30, how did we get r=2 from multiplying 32 by 1/5? Wouldn't 32×1/5 give us 6.4? Therefore making r=6.4?

[@thobekandlela7556]

1/5 is the exponent not a normal franction.

[@thobekandlela7556]

Thank you for this lesson I just have a quick question how is r=3 the answer to question 1?

[@tiyisaniconfidence4989]

I am also happy that we are having mathematics videos they wll really help us a lot

[@MlungisiNkosi]

I'm happy for you too... 😁

[@bongiwemalgas]

Sir how did you get 2 on tn

[@bwereketayiivainashe3279]

Hello sir, so grateful to you and the lesson you give us, sorry if I may ask does this concept work for As and A level

[@MlungisiNkosi]

Of course it does… Maths is Maths is Maths and the principles stay consistent regardless of the syllabus

[@BokamosoMotseki]

It helped me a lot to understand the sequences, thank you sir 🙏

[@MlungisiNkosi]

You are most welcome

[@lisitenzikamusaro914]

Thank you sooooooo much sir🔥🔥🔥🔥🔥🔥🔥🔥🔥 This was extremely helpful

[@MlungisiNkosi]

You’re welcome

[@sphesethuyende7174]

Sir,at 17:21,where does the ar^3 come from?

[@MlungisiNkosi]

It is term 4 of a geometric sequence…

[@girliemuhlanganisi9233]

Sorry sir you said it's term 4 but you put the 3 for term 3

[@austin_tiyani]

Check again, it's term 4

[@gracemaria1696]

Sorry sir but what took this video long by the way good to have you back

[@MlungisiNkosi]

I'm sorry we were not able to edit in time.

[@lesegoleope]

but sir u did not solve for x and y

[@YonelaYibe]

thanks a lot sir ;the lessons you give are really helpful and makes things easier

[@kagisoseer6706]

Malume when will you be doing previous papers on this section?

[@MlungisiNkosi]

Please look out soon

[@GGTHEKING444]

@@MlungisiNkosi eish we writing math paper 1 today preliminary exams

[@prosperityankuna8109]

On the second example no:1 wasn't that supposed to be ar to the power 4 cause is 189 is on the 4th term?

[@junior.masiteng]

yes it is, he skipped that step and went straight ahead to ar to the power of 3 (since 4-1=3)

[@BUBUREEDS]

Excuse me sir ,lapha ku r^5(1/5),, where's the 1/5 coming from?

[@MlungisiNkosi]

Please time stamp your comment so that it’s easier to know where to go

[@bensonmazarire9950]

Basically its is removing the exponent 5 to find r so u multiple by1/5 or u just put the 5th root on both sides

[@lizzolisa9068]

Class'24❤❤

[@MlungisiNkosi]

Welome to class of 2024.

[@vukonamhangani2122]

May God bless you !

[@ntandomampane3243]

Sir if I just factorized 2187 to 3 to the power of 7 and just dropped the basses would I still get full marks

[@MlungisiNkosi]

Yes

[@edwinmafinya1912]

Great job sir

[@MlungisiNkosi]

Thanks you

[@bontleManchidi-gp1tb]

X=21 and y= 63

[@nabeelahseedat7951]

Why are you dividing term 2 by term 7?

[@MlungisiNkosi]

In order to cancel the “a” value and be left with one variable “r”

[@thendoraphepele8313]

Hey sir. On the last qxn. We were asked the values of X and y

[@KhanyisileZulu-o8f]

In this lesson there was a mistake . On the first question of example 2 , we were required to find the value of x and y bt we only concentrated on the value of a and r

[@Bonganikhumalo1926]

If You have the value of r and a You can then easilY find all the terms Just saY Tn=7(3)²-¹ then ❤ You'll find x saY Tn= 7(3)³-¹ then You'll find Y hope You all get it

[@gugumthembu8163]

Hi sir Y choose log of I may ask

[@PetiteGirlChronicles]

Good day Sir, how will I know when to use the log?

[@MlungisiNkosi]

When the bases cannot be identical

[@Onthatile.Tsotetsi]

A few hours left.. Revision

[@dineograciousbulala8715]

From thw 1st question.. It says our second term is 6..and u said our T2 is 2..u lost me there.. Love ur vids by the way.. Thank u soo much

[@MlungisiNkosi]

Did the lesson help?

[@dineograciousbulala8715]

@@MlungisiNkosi it did.. I watched it over n over and i got it😍...

[@MlungisiNkosi]

@@dineograciousbulala8715 Awesome… I’m glad 😀❤️

[@sindihlatshwayo2939]

how did you get r=2?

[@MlungisiNkosi]

T2/T1 = T3/T2

[@sibongilebuthelezi6069]

You forgot to show us how can we solve for x and y in this one .

[@charlotte1987]

Hello, l’m very great full the way you teaching, but my problem is that, l don’t have data l want to attend maths & physical sciences, what. can l do where are you located?

[@MlungisiNkosi]

I’m in Johannesburg West and I will be making an announcement about live classes I will be hosting soon.

[@charlotte1987]

@@MlungisiNkosi My teacher l’m located in Midrand kaalfontein

[@CJRT]

✌BRILLIANT TEACHING

[@KamogeloMaluleke-k1k]

here i am screaming for x and y value

[@AlakhiweAkhile]

The question say determine the values of x and y sir 😢

[@pearlxulu950]

How I wish you had replied to all comments, I still cant find x and y. Its 2023

[@pearlxulu950]

I got it, now I can't find a laughing emoji

[@MlungisiNkosi]

I do try to respond to most comments. Just not as promptly at times

[@mahlatseagnes1534]

U didn't solve x n y

[@kundaimaiwasha7391]

red heart

[@MlungisiNkosi]

Where is it ?

[@kundaimaiwasha7391]

😀😀was experiencing technical problems@@MlungisiNkosi

[@RorisangMosekwa]

X = 21 Y = 63....