Graphs of Sinx, Cosx

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

If sinx + cosx = a, then the value of| sinx - cosx| is

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

Sketch the graph of y = max (sinx, cosx), AA x in (-pi,(3pi)/(2)).

If |[cosx, sinx, cosx], [-sinx, cosx, sinx], [-cosx, -sinx, cosx]|=0 , then x=

In the interval [-pi/4,pi/4] the number of real solutions of the equations |[sinx , cosx ,cosx],[cosx, sinx, cosx],[cosx , cosx , sinx]| =0

Prove the identity: Cosx/(1-Sinx) = (1+Cosx + Sinx)/(1+Cosx - Sinx)

If sinx-cosx=1,where'x'is an acute angle,the value of (sinx+cosx) is:

If sinx-cosx=1 , where 'x' is an acute angle ,the value of (sinx+cosx) is :