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If `f(x)=inte^(x)(tan^(-1)x+(2x)/((1+x^(2))^(2)))dx,f(0)=0` then the value of f(1) isA. `e((pi)/(4)-(1)/(2))+1`B. `e((pi)/(4)+(1)/(2))+1`C. `e((pi)/(2)-(1)/(4))+1`D. `e^(-1)((pi)/(4)-(1)/(2))+1` |
Answer» Correct Answer - A If `inte^(x)(tan^(-1)x+(2x)/((1+x^(2))^(2)))dx` `=inte^(x)(tan^(-1)x-(1)/(1+x^(2))+(1)/(1+x^(2))+(2x)/((1+x^(2))^(2)))dx` `=e^(x)(tan^(-1)x-(1)/(1+x^(2)))+c` `f(0)=0rArr c=1` `rArr" "f(1)=e((pi)/(4)-(1)/(2))+1` |
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