Isaac Solomon Wong's answer to Kathy's Secondary 4 A Maths Singapore question.
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Binomial's actually very easy to DO, not understand. I still don't know what i'm doing though i graduated.
I helped you out for questions 1 and 2, try solving 3 on your own :)
But anyway, basic steps are find the general term and from the general term, find the power of X equation.
Just keep in mind that when they ask for "which term", it's r+1 cause there's the n choose zero term.
I helped you out for questions 1 and 2, try solving 3 on your own :)
But anyway, basic steps are find the general term and from the general term, find the power of X equation.
Just keep in mind that when they ask for "which term", it's r+1 cause there's the n choose zero term.
Date Posted:
5 years ago
For question 2 the power is 20 (it does look like 30 though).
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