Agniveer Vayu or IAF Group X 15 July 2021 Shift 1 Paper

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Question : 43 of 70

Marks: +1, -0

Find the value of $\cos ⁡ ( sin \;^{−1}\;{1}/{5}) $.

$\;{1}/{{√{5}}}$
$\;{2{√{6}}}/{5}$
$−\;{1}/{{√{5}}}$
$−\;{2{√{6}}}/{5}$

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