1.

The vale of tan^(-1) tan(5pi/ 6) is ?​

Answer»

ANSWER:

TAN(65π)=tan(π−6π)

=−tan6π

=−31

COS(136π)=cos(2π+6π)

=cos(6π)=23

∴tan−1(3−1)+cos−1(23)

=−6π+6π=0.



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