1.If f(x)=∑p=17p2sin−1(45sin(px)−35cos(px))f(x) = \sum_{p=1}^{7} p^2 \sin^{-1} \left( \frac{4}{5} \sin(px) - \frac{3}{5} \cos(px) \right)f(x)=∑p=17p2sin−1(54sin(px)−53cos(px)) then the value of dfdx\frac{df}{dx}dxdf at x=1x = 1x=1 is (Given that sin−1(sinx)=x\sin^{-1}(\sin x) = xsin−1(sinx)=x)a.000b.628628628c.114011401140d.784784784Login to continueOnly logged in users canattempt or see the solution.
