

MCQOPTIONS
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1. |
If \[\sin (\pi \cos x)=cos(\pi sinx),\] then what is one of the values of\[sin\text{ }2x\]? |
A. | \[-\frac{1}{4}\] |
B. | \[-\frac{1}{2}\] |
C. | \[-\frac{3}{4}\] |
D. | \[-1\] |
Answer» D. \[-1\] | |