1.If f(x)=∫x2+sin2x1+x2sec2x dxf(x) = \int \frac{x^2+\sin^2 x}{1+x^2}\sec^2 x\,dxf(x)=∫1+x2x2+sin2xsec2xdx and f(0)=0f(0)=0f(0)=0, then f(1)=f(1)=f(1)=a.\tan 1 - \pi/4b.\tan 1 + 1c.\pi/4d.1 - \pi/4Login to continueOnly logged in users canattempt or see the solution.