" 19.If "1+sin x sin2x=cos x cos2x" then "x=

If sin^(4)2x+cos^(4)2x=sin2x*cos2x then x=

The equation sin x+sin2x+2sin x sin2x=2cos x+cos2x is satisfied by values of x for which

(1+sin x+cos x+sin2x+cos2x)/(tan2x)=0

If Det[[1,sin x,sin^(2)x1,cos x,cos^(2)x1,tan x,tan^(2)x]]=0,x in[0,2 pi]

If sin x + sin^(2) x =1 " then " cos^(8) x + 2 cos^(6) x + cos^(4) x =

If cos((pi)/(4)-x)cos2x+sin x sin2x sec x=cos x sin2x sec x+cos((pi)/(4)+x)cos2x then possible value of sec x is

int(sin2x-cos2x)/(sin2x*cos2x)dx=?

(1 + sin 2x + cos 2x )/( cos x + sin x ) = 2 cos x

If sin x ( cos ""(x)/( 4) - 2 sin x) + ( 1 + sin "" (x)/( 4) - 2 cos x) cos x = 0 then x =

If "sin" x + "sin"^(2) x = 1 show that: cos^(4)x + cos^(2)x = 1 (ii) If "sin" x + cos x =sqrt(2) cos x show that: sqrt2 sin x = cos x - sin x