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∫ (cos4x – cos2x )/ (sin4x-sin2x) dx , please answer asap, thank you.

∫ (cos4x – cos2x )/ (sin4x-sin2x) dx , please answer asap, thank you.

Grade:12

1 Answers

Arun
25757 Points
5 years ago
Put the formula of 
Cos C - cos D = 2 sin C+D/2 sin D-C/2
&
Sin C - Sin D = 2 cos C+D/2 Sin C-D/2
You will get integral as
2 sin 3x sin (-x) / 2 cos 3x sin (x)
= - tan 3x
Hope you can solve it from herr

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