MCQOPTIONS
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MCQOPTIONS
| 1. |
Find the integral of ( frac{e^{-x} (1-x)}{sin^2 (xe^{-x})} ). |
| A. | cot u2061xe<sup>-x</sup>+C |
| B. | -cot u2061xe<sup>-x</sup>+C |
| C. | -cot u2061xe<sup>x</sup>+C |
| D. | -cos<sup>2 u2061</sup>xe<sup>-x</sup>+C |
| Answer» C. -cot u2061xe<sup>x</sup>+C | |