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Assertion (A) : For an acute angle $\theta$, value of $\csc \theta$ cannot be $\frac{1}{\sqrt{2}}$. Reason (R) : $\csc \theta \geq 1$ for $0^{\circ} \leq \theta \leq 90^{\circ}$
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(A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).