If $\sin \theta = \frac{11}{61}$, find the values of $\cos \theta$ using trigonometric identity.
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P-2 Trigonometry question types
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P-2 Trigonometry questions
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Taking $\theta=30^{\circ}$ to verify the following Trigonometric identities :
(i) $\sin^{2}\theta+\cos^{2}\theta=1$
(ii) $1+\tan^{2}\theta=\sec^{2}\theta$
(iii) $1+\cot^{2}\theta=\csc^{2}\theta$.
View full solution →(i) $\sin^{2}\theta+\cos^{2}\theta=1$
(ii) $1+\tan^{2}\theta=\sec^{2}\theta$
(iii) $1+\cot^{2}\theta=\csc^{2}\theta$.
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