" 15.Let "f(x)=2x-tan^(-1)x-ln(x+sqrt(1+x^(2)));x in R," then "

f(x)=2x+cot^(-1)x+log (sqrt(1+x^(2))-x)

f(x)=2x-tan^(-1)x-log(x+sqrt(1+x^(2)))(x>0) is increasing in

f(x)=2x-tan^(-1)x-log|x+sqrt(1+x^(2))| is ……….. (x in R)

f(x)=2x-Tan^(-1)x-log(x+sqrt(1+x^(2))(xgt0) is increasing in

If f(x)=2x-tan^(-1) x-log (x+sqrt(x^(2)+1)) , then show that f(x) steadily increases as x increases from zero to positive infinity and hence deduce that, 2x gt tan^(-1) x+log (x+sqrt(x^(2)+1))

Let f(x) = sin(log_(3)(x+sqrt(x^(2)+1))), x in R , then

f(x)=2x+cot^(-1)x-log|x + sqrt(1+x^(2))| is …………..

If f(x)=2x+cos^(-1) x+log (sqrt(1+x^(2))-x) , then f(x) is-

If f(x)=2 x cot ^(-1)x + log (sqrt(1+x^2)-x then f(x)