# Ex 7.6, 24 (MCQ) - Chapter 7 Class 12 Integrals (Term 2)

Last updated at Aug. 9, 2021 by Teachoo

Last updated at Aug. 9, 2021 by Teachoo

Transcript

Ex 7.6, 24 β«1βπ^π₯ secβ‘π₯ (1+tanβ‘π₯ )ππ₯ "ex" cos x + C (B) "ex" sec x + C (C) "ex" sin x + C (D) ππ₯ tan x + C β«1βπ^π₯ secβ‘π₯ (1+tanβ‘π₯ )ππ₯ = β«1βπ^π₯ (secβ‘π₯+secβ‘π₯ tanβ‘π₯ )ππ₯ It is of the form β«1βγπ^π₯ [π(π₯)+π^β² (π₯)] γ ππ₯=π^π₯ π(π₯)+πΆ Where π(π₯)=secβ‘π₯ π^β² (π₯)=secβ‘π₯ tanβ‘π₯ So, our equation becomes β«1βγππ₯ (secβ‘π₯+secβ‘π₯ tanβ‘π₯ ) γ ππ₯ = π^π₯ secβ‘π₯+πΆ β΄ Option (B) is correct.

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Ex 7.6, 23 (MCQ)

Ex 7.6, 24 (MCQ) Important You are here

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