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