( 90 ^o - ^ - 1 1 3 ) = - Vidyadip

MCQ

$\tan \left( {{{90}^o} - {{\cot }^{ - 1}}\frac{1}{3}} \right) = $

A
$3$
B
$\frac{2}{3}$
✓
$\frac{1}{3}$
D
$\frac{1}{{\sqrt {10} }}$

✓

Answer

Correct option: C.

$\frac{1}{3}$

c
(c) $\tan \,\left( {{{90}^o} - {{\cot }^{ - 1}}\frac{1}{3}} \right)\, = \cot \,.\,{\cot ^{ - 1}}\frac{1}{3} = \frac{1}{3}$.

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