Free UPSC Mathematics Optional Paper-1 2019 Solutions: View Online | UPSC Maths Solution | IAS Maths Solution
खण्ड-A / SECTION-A (a) माना कि f : [ 0 , π 2 ] → R f : 0 , π 2 → R f:[0,(pi)/(2)]rarrRf:left[0, frac{pi}{2}right] rightarrow mathbb{R}f:[0,π2]→R एक संतत फलन है, जैसा कि f ( x ) = cos 2 x 4 x 2 − π 2 , 0 ≤ x < π