ECZ 2020 GCE P2 geometric progression question solved.

[@masausozulu4077]

I love you sir I have now started do better in mathematics

[@brexiousndawa9930]

Understanding all the languages of mathematics is not a big deal with these great Teachers(Mr Mbondo and Phiri) just be following them at every video.Making Maths easy to every learner.

[@chaumbambondo3961]

Thanks

[@CastroMoleshi]

Wow well done sir

[@DillisMwenda-uv2lr]

nice explanation 🙏

[@ivinmulenga7828]

Me I like the board you're using every thing is visible & you've explained very well

[@shadreckkalwiji3168]

Amazing work sir

[@zoomlastentertainment6906]

Thanks u are very helpful 👍👍👍👍👍👍

[@poulmbewe2859]

We love this sir keep it up

[@stafordmweemba7967]

Wow💕💕🙏 I had a challenge but now am free

[@mazubangambi2365]

Great work 👏

[@princemweemba6634]

Thank you sir well explained 💥💯💯🔥🔥🔥

[@majormkandawire6062]

I like your courage brother

[@christinesakala9252]

I like it sir 👌👌

[@jacksonmumba8313]

Thanks sir

[@BennyLukwesa]

Thank you sir but the last part i haven't gotten it unless we meet in person where are you from

[@sydneychipeta8186]

thank you sir well explained

[@JOSHUACHIBEMBA]

Now why didn't we use the same formula we used to find the first term 10-10\2n

[@alphamoono6317]

First you found the first term using the formula given, and you used the same formula to find the sum of the first 2 terms which is very okay. Now, why is that the sum of the first two terms does not qualify to be the 2nd term? And if it does, why didn't you use the formula for common ratio directly where r=T2/T1?

[@lesleymwamba4785]

Were can I find u I would like to start extra lessons

[@patriciachipimpi391]

I just couldn't understand the third answer for the first 4 terms you included alot so am lost😣😣

[@RhodiaMundenda]

Where did you find that 5 sir

[@walukachannelwaluka2665]

❤

[@JeffreyWilliams-ju7tu]

11:21 two formula for finding r how did you know that r is Les that one

[@MarioNZ404]

I just can't understand the third answer Which says to find the first 4 terms

[@shadreckmubita7467]

Sir where did 5/2 came from

[@majormkandawire6062]

The way to go

[@chaumbambondo3961]

Thanks

[@sitakwasitakwa9798]

How did you know that r was less than one because under G.P there are two formulas for finding the sum of terms. One where r>1,the other r

[@clausezulu8587]

Hello. Your question is a very good one. I have noted that both formulas appear to give the same answer. Whether this would work or not for other situation, i am not sure. Alternatively, we could you could find the sum of the first two terms using the given formula. (Pardon my short cuts) Sum of first 2 terms = 15/2 or 7.5 Then, 2nd term= T2 - T1 = 7.5 - 5 = 2.5 or 5/2 Since 2nd term is 5/2 and we know that r=T2/T1 Then r=5/2÷5 r= 1/2 Then find the term by multiplying consecutive terms by the common ratio, r. I hope you find it helpful. (Corrections are welcome) Thank you

[@majormkandawire6062]

Together, we can bro

[@chaumbambondo3961]

Thanks alot

[@websterchileshe3937]

How did you know that you have to use that formula for sum, because there are two formulae for sum?

[@deadshot2133]

Make a full topic on gp please

[@chaumbambondo3961]

I did. The videos are there.

[@kayodds458]

Sn-a(1-Rn) 1-R help me with this one