1.

If sin (2x - 45°) = cosx and angle x and (2x - 45°) (in degrees) are acute angles, then the value of cot x is:

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


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