[" SECTION-D "],[4sin x cos x+2sin x+2cos x+1=0]

Solve the equation 4 sin x cos x + 2 sin x + 2 cos x + 1 = 0

Solve the following trigonometric equation : 4sin x cos x+2 sinx+ 2cos x+1=0 .

Solve the equation 4sin x cos x+2sin x+2cos x+1=0

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

Prove that (1 + sin x-cos x) / (1 + sin x + cos x) + (1 + sin x + cos x) / (1 + sin x-cos x) = 2cos ecx

3-2cos x-4sin x-cos2x+sin2x=0

(cos 4x sin 3x -cos 2x sin x )/(sin 4x sin x+ cos 6x cos x)= tan 2x

Let f(x)=|[1+sin ^2 x, cos ^2 x , 4 sin 2 x],[ sin ^2 x ,1+cos ^2 x , 4 sin 2 x],[ sin ^2 x , cos ^2 x , 1+4 sin 2 x]| , the maximum value of f(x) is

If Delta (x)= |(1,cos x,1-cos x),(1+sin x ,cos x,1+sin x-cos x),(sin x,sin x,1)| , then int_(0)^(pi//2) Delta (x) dx= a) (-1)/(2) b) (1)/(2) c)1 d) -1