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secondary 3 | A Maths
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secondary 3 chevron_right A Maths chevron_right Singapore

Pls help me with this qn
Pls reply asap thx

Date Posted: 3 years ago
Views: 171
Kahwai
Kahwai
3 years ago
Read text book

Binomial theorem

Sum of index is 2,

Find r

Then find the term

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
This is an idea.

Well, you could expand the brackets fully and find the specific term...

...but imagine the power gets large. This is why we just pick a specific term in the general expansion rather than expanding out everything fully. It’s going to be a long expansion.
Shams
Shams
3 years ago
Thx alot
Shams
Shams
3 years ago
Thx