The number of points in `(-oo,oo),` for which `x^2-xsinx-cosx=0,` is 6 (b) 4 (c) 2 (d) 0

The number of points in (-oo, oo) , for which x^(2)-x sin x-cosx=0 , is :

The number of points in (-oo,oo), for which x^(2)-x sin x-cos x=0, is 6(b)4(c)2(d)0

The number of points in (-oo, oo) , for which x^(2) - x sin x - cos x = 0 , is a)6 b)4 c)2 d)0

Let A (0,2),B and C be points on parabola y^(2)+x +4 such that /_CBA (pi)/(2) . Then the range of ordinate of C is (a) (-oo,0)uu (4,oo) (b) (-oo,0] uu[4,oo) (c) [0,4] (d) (-oo,0)uu [4,oo)

Let A (0,2),B and C be points on parabola y^(2)+x +4 such that /_CBA (pi)/(2) . Then the range of ordinate of C is (a) (-oo,0)uu (4,oo) (b) (-oo,0] uu[4,oo) (c) [0,4] (d) (-oo,0)uu [4,oo)

The interval in which y=x^2e^(-x) is increasing is a) (0,2) b) (-2,0) c) (2,oo) d) (-oo,oo)

The interval in which y=x^2""e^(-x) is increasing is (A) (-oo,""""oo) (B) ( 2, 0) (C) (2,""""oo) (D) (0, 2)

The set of all real numbers x for which x^2-|x+2|+x >0 is (a)(-oo,-2)uu(2,oo) (b) (-oo,-sqrt(2))uu(sqrt(2),oo) (c)(-oo,-1)uu(1,oo) (d) (sqrt(2),oo)

the interval in which the function f given by f(x) = x^2 e^(-x) is strictly increasing, is (a) ( -(oo) , (oo) ) (b) ( -(oo) , 0 ) (c) ( 2 , (oo) ) (d) ( 0 , 2 )