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If I(n) = int Sec^(n) x dx then I(8) -...

If `I_(n) = int Sec^(n) x ` dx then ` I_(8) - (6)/(7) I_(6)` =

A

`(Sec^(6) " x tanx")/(7)`

B

`(-Sec^(6) " x tanx")/(7)`

C

`(Sec^(6) " x tanx")/(8)`

D

`(-Sec^(6) " x tanx")/(9)`

Text Solution

Verified by Experts

The correct Answer is:
A
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