1.

The value of \(\frac{\sin 30{}^\circ -\cos 60{}^\circ +{{\cot }^{2}}45{}^\circ }{\cos 30{}^\circ -\tan 45{}^\circ +\sin 90{}^\circ }\) is equal to∶

A. 3/2
B. √3/4
C. (2√3)/3
D. √3/2
Answer» D. √3/2


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