1.

The value of \(\frac{sin23^\circ cos67^\circ tan45^\circ +cos23^\circ sin67^\circ cot45^\circ }{2sin45^\circ cos45^\circ }\) is:

A. 0
B. 2
C. 1
D. \(\frac{1}{\sqrt{2}}\)
Answer» D. \(\frac{1}{\sqrt{2}}\)


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