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Mathematics
Mathematics
Problem
The value of
sin
cot
−
1
tan
cos
−
1
x
\sin \cot^{-1} \tan \cos^{-1} x
sin
cot
−
1
tan
cos
−
1
x
(for
x
>
0
x > 0
x
>
0
) is equal to (a)
x
x
x
(b)
π
2
\frac{\pi}{2}
2
π
(c) 1 (d) None of these
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