c4 trig

how do you do question 9 thanks in advance. disregard the thumbnails dont know where they came from

(edited 11 years ago)

Which bit and what have you tried so far?

We are not allowed to give complete answers...
have you tried expanding the bracket ?

how do you do question 9 thanks in advance. disregard the thumbnails dont know where they came from

Weierstrass substitution

Original post by Felix Felicis

Weierstrass substitution

Needlessly complicated. There is a simpler substitution.

bro this is C3. do you even math?

Use the trig identity for sin(A+B) and go from there. It should work out if you follow it through

Needlessly complicated. There is a simpler substitution.

Ha, appears so, my bad. Forgot the integrals of secx and cscx are in the formula booklet. :colondollar:

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