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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
Thx

Date Posted: 4 years ago
Views: 258

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Ethan Lie
Ethan Lie's answer
20 answers (Tutor Details)
1st
Expand using normal binomial expansion, second part expand the second equation, multiply the expanded forms together, simplify and compare the coefficients to given data to solve a and b
Shams
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4 years ago
I havent turned binomial yet
This qn is based on partial fractions
Repeated linear factors
Ethan Lie
Ethan Lie
4 years ago
You might be mistaken, for partial fractions there needs to be a denominator and numerator. Rather seems like this question is referring to expansion rather than on partial fractions
Shams
Shams
4 years ago
Nvm issok
Thx
Eric Nicholas K
Eric Nicholas K
4 years ago
The format of the bracketed terms (2 - x)^6 and (1 - ax)^2 does look like that of a partial fraction situation with repeated linear roots, but sadly the expression is not a partial fraction at all.

If the expression is something like 1 divided by (2 - x)^6 (1 - ax)^2, then this question will fall under partial fraction. But then again, doing partial fractions for this will be challenging, with eight fractions to split into.