1.

If int(x+(cos^(-1)3x)^(2))/(sqrt(1-9x^(2)))dx=Psqrt(1-9x^(2))+Q(cos^(-1)3x)^(3)+c then

Answer»

`P=-(1)/(9)`
`Q=-(3)/(8)`
`P=(3)/(8)`
`Q=-(1)/(9)`

ANSWER :A::D


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