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Let f(x) = cos 7 x cos 3x and g(x) = si...

Let `f(x) = cos 7 x cos 3x and g(x) = sin 7 x sin 3x `
` int {f(x) + g(x) } dx = `

A

`1/8 sin 4x+ c `

B

`1/10 sin 10x + c `

C

` 1/4 sin 4x + c`

D

`1/20 sin 10 x + c `

Text Solution

Verified by Experts

The correct Answer is:
C
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