The point on the curve y = 2x2 - 4x + 5, at which the tangent is parallel to x-axis, will be
(1, 3)
(- 1, 3)
(1, - 3)
(- 1, - 3)
The interval, inwhich the function f(x) = x2e-x is an increasing function, will be
(- 2, 0)
(0, 2)
D.
(0, 2)
The probability that at least one ofthe events A and B occurs is 0.6. If A and B occur simultaneously with probability 0.2, then will be
1.5
1.3
1.2
0.8
The line passing through the point (- 1, 2 3) and perpendicular to the plane x - 2y + 3z+ 5 = 0 will be