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Q) sin(cot^-1x)+------- A)1/root(1/x 2 ) B)root(1/x 2 ) C)-1/root(1/x 2 ) D)none

Q) sin(cot^-1x)+-------


A)1/root(1/x2)         B)root(1/x2)          C)-1/root(1/x2)         D)none

Grade:12

1 Answers

Dipanwita Bhattacharjee
32 Points
9 years ago

the answer is (d) i guess.

sin(cot^-1(x))

=sin(sin^-1(1/root(1+x^2)))

=1/root(1+x^2)

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