1.

If int (4e^(x) + 6e^(-x))/(9e^(x) -4e^(-x)) " dx = Ax + B log" (9e^(2x) - 4) + c then (A,B) =

Answer»

`(- (3)/(2),(35)/(36)) `
`((3)/(2),(35)/(36))`
`(-(3)/(2),(35)/(36))`
`((3)/(2), -(35)/(36))`

ANSWER :A


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