`int(e^(2x-1)-e^(1-2x))/(e^(x+2))=`

Evaluate: int(e^(2x)-2e^x)/(e^(2x)+1)dx

Evaluate the following: (i) int(sec^(2)x)/(3+tanx)dx " (ii) " int(e^(x)-e^(-x))/(e^(x)+e^(-x))dx (iii) int(1-tanx)/(1+tanx)dx " (iv) " int(1)/(1+e^(-x))dx

int(x^(e-1)-e^(x-1))/(x^e-e^x)dx

int_(0)^(1)e^(2x)e^(e^(x) dx =)

intsqrt((e^x+1)/(e^x-1))dx (A) ln (e^(x)+sqrt(e^(2x)-1))-sec^(-1)(e^(x)) +C (B) ln(e^(x)+sqrt(e^(2x)-1))+sec^(-1)(e^(x))+C (C) ln (e^(x)-sqrt(e^(2x)-1))-sec^(-1)(e^(x)) +C (D) ln(e^(x)+sqrt(e^(2x)-1))-sin^(-1)(e^(-x))+C

int_(0)^(log 2)(e^(x))/(1+e^(x))dx=

int(e^x+1)^2e^xdx

int_(-1)^(1)e^(2x)dx

Evaluate: int(x^(e-1)-e^(x-1))/(x^e-e^x)dx

Evaluate: int(e^(x-1)+x^(e-1))/(e^x+x^e)dx