1.

\[\int_{{}}^{{}}{\sin (\log x)dx=}\]

A.                 \[\frac{1}{2}x[\cos (\log x)-\sin (\log x)]\]
B.                 \[\cos (\log x)-x\]
C.                 \[\frac{1}{2}x[\sin (\log x)-\cos (\log x)]\]
D.                 \[-\cos \log x\]
Answer» D.                 \[-\cos \log x\]


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