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[" 10."int(x^(2)+cos^(2)x)/(1+x^(2))cose...

[" 10."int(x^(2)+cos^(2)x)/(1+x^(2))cosec^(2)xdx" is equal to: "],[[" (1) "-tan^(-1)x+cot x+c," (2) "2tan^(-1)x+c," (3) "-tan^(-1)x-(cos cos x)/(sec x)+c(4)" none of these "]]

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