First slide

Properties of ITF

Question

$\cot \{\cos^{- 1} (\frac{7}{25})\} =$

Moderate

A

$\frac{25}{24}$
B

$\frac{25}{7}$
C

$\frac{24}{25}$
D

none of these

Solution

We have,
$\cot \{\cos^{- 1} (\frac{7}{25})\} = \cot \{\cot^{- 1} (\frac{7}{24})\} = \frac{7}{24}$

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