Prove that 2 to the power n+1 > (n + 2) · sin(n) for all positive integers n.
prove that 2n+1 > (n+2) sin(n) for all positive integers n
determine the integral from pie/2 to 0 of function sin2x cosx dx
determine the integral of function (ln(4x))^3 /x dx
determine the integral of function x^2 -x -6/ x +2 dx