Find the value of the following: `int_4^5 e^xdx`

Find the value of the following: int_2^3 1/xdx

Find the value of the following: int_0^7 sqrt(9+xdx)

Find the value of the following: int_0^(pi/6) cosxcos2xdx

Find the values of the following: (i) int_(0)^(pi/2)sin^(5)xcos^(4)xdx (ii) int_(0)^(pi/2)sin^(4)xcos^(6)xdx

Evaluate the following: int(1+x)e^xdx

Evaluate the following: int_a^babsx/xdx

Evaluate the following int" cosec"^(4)xdx

Evaluate the following integrals: int_4^5 e^x dx

Evaluate the following integrals: int cos^4 xdx