defence exam Army Havildar SAC Mock Test Series 2025 Mathematics Trigonometry Inverse Trigonometric Functions

The value of sin (cot-1x) is:

1
\(\rm \sqrt {1+x^2}\)
2
x
3
\(\rm \dfrac{1}{\sqrt {1+x^2}}\)
4
\(\rm \dfrac{1}{x}\)
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