Both A and R are true and R is the correct explanation of A
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B
Both A and R are true but R is not correct explanation of A
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C
A is true R is false
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D
A is false but R is true.
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Solution
The correct option is A Both A and R are true and R is the correct explanation of A A=∫tan4xsec2xdx=∫tan4xd(tanx) =tan5x5+c A: true B=∫[f(x)]n⋅f1(x)dx=∫[f(x)]nd⋅f(x)
=f(x)n+1n+1+c R: correct and R is correct explanation for A.