Math, asked by ajayjena93156, 6 months ago

tan-1(cosx-sinx )/(cosx+sinx)

Answers

Answered by anujahbhosale

0

Solution :

cosx−sinxcosx+sinx=1−tanx1+tanx

tan(A−B)=tanA−tanB1+tanAtanB

=tan(π4−x)

putting this value in question.

tan−1tan(π4−x)

π4−x.

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