Let `a,b,c` be three distinct positive real numbers then number of real roots of `ax^2+2b|x|+c=0` is (A) 0 (B) 1 (C) 2 (D) 4

If a,b,c are distinct positive real numbers, then

The number of real roots of 3^2x^2-7x+7=9 is (A) 0 (B) 2 (C) 1 (D) 4

If a ,b ,c are three distinct positive real numbers, the number of real and distinct roots of a x^2+2b|x|-c=0 is 0 b. 4 c. 2 d. none of these

If a ,b ,c are three distinct positive real numbers, the number of real and distinct roots of a x^2+2b|x|-c=0 is 0 b. 4 c. 2 d. none of these

If a,b,c are positive real numbers, then the number of real roots of the equation ax^2+b|x|+c is

The number of real solutions of |2x-x^2-3|=1 is (a) 0 (b) 2 (c) 3 (d) 4

If a,b,c are positive real numbers, then the number of positive real roots of the equation ax^(2)+bx+c=0 is

If a , b ,c are three distinct positive real numbers in G.P., then prove that c^2+2a b >3ac

The number of real roots xcosx=1 in [0,2pi] (A) 1 (B) 2 (C) 3 (D) none of these

The number of real roots xcosx=1 in [0,2pi] (A) 1 (B) 2 (C) 3 (D) none of these