NDA Maths Mock Test – 01 – Q95

Question:

∫ ex (cot x – cosec2 x) dx = ?

∫ ex (cot x – cosec2 x) dx = ?

Options:

  • ex cosec2 x + C
  • -ex cot x + C
  • -ex cosec2 x + C
  • ex cot x + C
  • ex cosec2 x + C
  • -ex cot x + C
  • -ex cosec2 x + C
  • ex cot x + C

Correct Answer: d)

Explanation:

I=f e* f(x) + f'(x) dx, where f(x) = cot x
i =e* fx) +C=e*cotx+C
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‘

I=f e* f(x) + f'(x) dx, where f(x) = cot x
i =e* fx) +C=e*cotx+C
‘ * –
©) 7
1 *
hon a
‘

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