$\sin \theta=\frac{1}{2},$ તો $\theta=\ldots \ldots \ldots \ldots$
$30$
$45$
$60$
$90$
$\sin \theta=\frac{1}{2} \cdot$ But, $\sin 30=\frac{1}{2} \quad \therefore \theta=30$
$\cot \theta=\frac{a}{b},$ તો $\frac{\cos \theta-\sin \theta}{\cos \theta+\sin \theta}=\ldots \ldots \ldots$
$\Delta ABC$ માં , $m \angle A =90, AB =5, AC =12$ અને $BC =13 $ તો $\sin C +\cos C =\ldots \ldots \ldots \ldots$
સાબિત કરો :
$\frac{\tan A }{1 \sec A } – \frac{\tan A }{1 \sec A } = 2 \operatorname{cosec} A$
$\tan \theta=\sqrt{3},$ તો $\theta=\ldots \ldots \ldots$
$\operatorname{cosec} A=\sqrt{10},$ તો $\sin A=\ldots \ldots \ldots . . .$
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