Basic Maths
medium

જો $\tan \theta=\frac{1}{\sqrt{5}}$ અને $\theta$ એ પહેલા ચરણમાં હોય તો $\cos \theta$ નું મૂલ્ય:

A

$\sqrt{\frac{5}{6}}$

B

$-\sqrt{\frac{5}{6}}$

C

$\frac{1}{\sqrt{6}}$

D

$-\frac{1}{\sqrt{6}}$

Solution

(a)

$\cos \theta=\frac{\sqrt{5}}{\sqrt{6}}$

Standard 11
Physics

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