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

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

M.vs vivek vardhan , 14 Years ago
Grade 12
anser 1 Answers
Dipanwita Bhattacharjee

Last Activity: 14 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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