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int (x+ ( cos^(-1)3x )^(2))/(sqrt(1-9x ^...

`int (x+ ( cos^(-1)3x )^(2))/(sqrt(1-9x ^(2)))dx = (1)/(k _(1)) ( sqrt(1-9x ^(2))+ (cos ^(-1) 3x )^(k_(2)))+c, ` then `k _(1) ^(2)+k_(2)^(2)=` (where C is an arbitrary constnat. )

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