\operatorname tan \frac \pi 4 \operatorname sin \frac – InterviewSolution

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1.	\operatorname tan \frac \pi 4 \operatorname sin \frac \pi 6 %2B \operatorname sin \frac \pi 4 \operatorname cos \frac \pi 2 %2B \operatorname sin ^ 2 \frac \pi 2 \cdot \operatorname sin \frac \pi 6
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