The number of distinct real roots of `|sinxcosxcosxcosxsinxcosxcosxcosxsinx|=0` in the interval `-pi/4lt=xlt=pi/4` is 0 (b) 2 (c) 1 (d) 3

The number of distinct real roots of |[sinx,cosx,cosx],[cosx,sinx,cosx],[cosx,cosx,sinx]|=0 in the interval pi//4lt=xlt=pi//4 is 0 b. 2 c. 1 d. 3

The number of distinct real roots of |(sinx,cosx,cosx),(cosx,sinx,cosx),(cosx,cosx,sinx)|=0 in the interval -pi/4 le x le pi/4 is (a) 0 (b) 2 (c) 1 (d) 3

The number of distinct roots of |(sinx, cosx, cosx),(cosx, sinx, cosx),(cosx,cosx,sinx)|=0 in the interval -pi/4 le x le pi/4 is (A) 0 (B) 2 (C) 1 (4) 2

The number of distinct real roots of |(sinx, cosx, cosx),(cos x,sin x,cos x),(cos x,cos x,sin x)|=0 in the interval -(pi)/4 le x le (pi)/4 is

The number of distinct real roots of the equation |cosx s in x s in x s in x cos x s in x s in x s in x cos x|=0 in the interval [-\ pi/4,pi/4] is- a. 3 b. \ 4 c. \ 2 d. 1

The number of distinct real roots of x^(4)-4x^(3)+12x^(2)+x-1=0

The number of distinct real roots of x^(4)-4x^(3)+12x^(2)+x-1=0 is :