A. (2nπ-π/2, 2nπ+π/2) (n € z)
B. (2nπ+π/2, 2nπ+3π/2) (n € z)
C. (2nπ+π/4, 2nπ+π/2) (n € z)
D. (2nπ-π/2, 2nπ+3π/2) (n € z)
If f(x) =2x2+3x-5, x=3, δx=0.02, then δf=
The length of the subnormal of the curves y=a/2(ex/a+e-x/a) at any point is
A stone is thrown vertically up and height s reached in time t is given by the formula s=2t2+3t+1. The stone reaches the maximum height in time t =
If A, B, C, D are the lengths of normals to the curves 1.y=4x2 at (-1, 4) 2. Y=x3+1 at (1, 2) 3. Y=x3/2-x at (1,1) 4. 2x2+3xy-2y2=8 at (2, 3) then the ascending order of A,B,C,D is