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Assertion (A): $\tan 20$ is not defined at $\theta = 45^{\circ}$.
Reason (R): $\sin 90^{\circ} \neq \cos 90^{\circ}$.
Reason (R): $\sin 90^{\circ} \neq \cos 90^{\circ}$.
- (a)Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- (b)Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- (c)Assertion (A) is true, but Reason (R) is false.
- (d)Assertion (A) is false, but Reason (R) is true.
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Sol. (B) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).