1.If f(x)=∫cosec5x dxf(x)=\int \cosec^5 x\,dxf(x)=∫cosec5xdx, then f(π/4)=f(\pi/4) =f(π/4)=a.-\frac14[3\sqrt2 - 5\log(\sqrt2+1)] + cb.-\frac18[5\sqrt2 - 3\log(\sqrt2+1)] + cc.-\frac18[7\sqrt2 + 3\log(\sqrt2+1)] + cd.\frac18[5\sqrt2 + \log(\sqrt2+1)] + cLogin to continueOnly logged in users canattempt or see the solution.
