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Previous Year Question (PYQs)



The value of $ \sin 30^\circ \cos 45^\circ + \cos 30^\circ \sin 45^\circ $





Solution

Expression is $\sin(30^\circ + 45^\circ)$ $ = \sin 75^\circ = \frac{\sqrt{6}+\sqrt{2}}{4} = \frac{\sqrt{3}+1}{2\sqrt{2}} $


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