1.Range of f(x)=sin−1x+tan−1x+sec−1xf(x) = \sin^{-1} x + \tan^{-1} x + \sec^{-1} xf(x)=sin−1x+tan−1x+sec−1x isa.[π/4,3π/4][\pi/4, 3\pi/4][π/4,3π/4]b.[π/4,3π/4][\pi/4, 3\pi/4][π/4,3π/4]c.{π/4,3π/4}\{\pi/4, 3\pi/4\}{π/4,3π/4}d.(−π/4,3π/4)(-\pi/4, 3\pi/4)(−π/4,3π/4)Login to continueOnly logged in users canattempt or see the solution.
