Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 4 | A Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
claire chen
Claire Chen

secondary 4 chevron_right A Maths

binomial theorem

Date Posted: 7 years ago
Views: 682

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Yee Miao Ling
Yee Miao Ling's answer
29 answers (Tutor Details)
1st
Hi, this should be the answer. I think this is considered slightly above average difficulty binomial theorem question.

Basically, you use the basic BT formula, along with the manual calculation of n! to derive out the formula. Then you have to make use of law of indices to combine all the "2" terms together.

The manual calculation of n! is definitely useful to know because it's usually needed to solve the more difficult BT question. Hopefully this explanation helps.