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∫cos 3 x e log(sinx) dx is equal to

∫cos3x elog(sinx) dx is equal to

Grade:12

1 Answers

Gurwinder Kaur
65 Points
10 years ago

∫cos3x elog(sinx) dx                            put cosx=t

=∫cos3x sinx dx                                diffrentiating both sides

=-∫t3 dt                                                       -sinxdx=dt  ,   sinxdx=-dt

=-t4/4

=-cos4x/4

plz approve if u like...                                                           

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