Number of real roots of equation `f(x)=0` is (A) 0 (B) 1 (C) 2 (D) none of these

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

The number of real roots of equation x^8-x^5+x^2-x+1=0 is (A) 2 (B) 4 (C) 6 (D) 0

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

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

The number of real solutions of the equation e^(|x|)-|x|=0 , is A. 0 B. 1 c. 2 D. None of these.

The number of real solutions of the equation e^(|x|)-|x|=0 , is A. o B. 1 c. 2 D. None of these.

The number of real solutions of the log_(0.5)|x|=2|x| is 1 (b) 2(c)0(d) none of these

The number of real solutions of the (log)_(0. 5)(x)=|x| is (a) 1 (b) 2 (c) 0 (d) none of these

The number of real solutions of the (log)_(0. 5)(x)=|x| is (a) 1 (b) 2 (c) 0 (d) none of these