3.Trigonometrical Ratios, Functions and Identities
easy

निम्न में असत्य कथन है

A

$\sin \theta = - \frac{1}{5}$

B

$\cos \theta = 1$

C

$\sec \theta = \frac{1}{2}$

D

$\tan \theta = 20$

Solution

$\sec \theta  = \frac{1}{2}$ असत्य तथ्य है, क्योंकि $\sec \theta $ हमेशा $ \ge 1$ होता है।

Standard 11
Mathematics

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