" (4) "int_(a)^(b)(log x)/(x)dx" is equal to "

int_(a)^(b)(log x)/(x^(2))dx

int(e^(x)(x log x+1))/(x)dx is equal to

int_(1)^(x) (log(x^(2)))/(x) dx is equal to

int_(0)^(1)log((1)/(x)-1)dx is equal to

If a=lim_(x rarr oo)(sin x)/(x)&b=lim_(x rarr0)(sin x)/(x) Then int_(a)^(b)(log(1+x))/(1+x^(2))dx is equal to

If a=lim_(x rarr oo)(sin x)/(x)&b=lim_(x rarr0)(sin x)/(x) Then int_(a)^(b)(log(1+x))/(1+x^(2))dx is equal to

int(1)/(x(1+log x)^(2))dx is equal to

int log x dx is equal to :

int_(-10)^(10)log((a+x)/(a-x))dx is equal to

int log x dx is equal to