A) \[\frac{13}{16}\]
B) \[5\]
C) \[1\]
D) \[-\frac{1}{2}\]
Correct Answer: A
Solution :
\[{{\sin }^{2}}{{60}^{o}}\,{{\cos }^{2}}{{30}^{o}}+\tan {{45}^{o}}\cos {{60}^{o}}\sin {{30}^{o}}\] \[=\frac{3}{4}\times \frac{3}{4}+1\times \frac{1}{2}\times \frac{1}{2}\] \[=\frac{9}{16}+\frac{1}{4}=\frac{13}{16}\]You need to login to perform this action.
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