a Find the values of A and B in the identity A (2 sin x + cos x) + B (2 cos x sin x) = 7 sin x + 11 cos x. 7sinx + 11cos.x b Hence show that dx = 1 -(5л + 6In 2). 2sinx + cosx

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Chapter1: Functions And Models
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21 a Find the values of A and B in the identity
A (2 sin x + cos x) + B(2 cos x
sin x)
= 7 sin x + 11 cos x.
-
2 7sinx + 11cosx
- dx
2sinx + cosx
b Hence show that
(5x + 6 ln 2).
Transcribed Image Text:21 a Find the values of A and B in the identity A (2 sin x + cos x) + B(2 cos x sin x) = 7 sin x + 11 cos x. - 2 7sinx + 11cosx - dx 2sinx + cosx b Hence show that (5x + 6 ln 2).
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