MCQ
$\int e ^x\left(\frac{\cos x-\sin x}{\sin ^2 x}\right) d x = .......$.
- ✓$– e^x cosec \ x + c$
- B$– e^x \cot \ x + c$
- C$e^x cosec \ x + c$
- D$ex \cot \ x + c$
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| Column I | Column II | ||
| i. | Not evaluated | a. | Pervasive and abundant after careful assessment |
| ii. | Near threatened | b. | Information related to risk of extinction is lacking in some way |
| iii. | Least concern | c. | Described by scientist but not assessed by the IUCN |
| iv. | Data deficient | d. | May meet the criteria for threatened status in the near future |