The solutions of the equation `sinx+2sin2x+sin3x=cosx+3cos2x+cos3x` in the interval `0lt=xlt=2pi,` are (a) `pi/8,(5pi)/8,(2pi)/3` (b) `pi/8,(5pi)/8,(9pi)/8,(13pi)/8` (c) `(4pi)/3,(9pi)/3,(2pi)/3,(13pi)/8` (d) `pi/8,(5pi)/8,(9pi)/3,(4pi)/3`

The solution of the equation 8^(1+|cosx|+|cos^2x|+|cos^3x|+.........) = 4^3 in the interval (-pi,pi)

The general solution of the equation sin x-3sin2x+sin3x=cos x-3cos2x+cos3x is (n in Z)n pi+(pi)/(8)(b)(n pi)/(2)+(pi)/(8)(-1)^(n)(n pi)/(2)+(pi)/(8) (d) 2n pi+(cos^(-1)2)/(3)

The number of solutions of the equation cos^(2)((pi)/(3)cos x - (8pi)/(3))=1 in the interval [0,10pi] is

Find the number of solutions of the equation sin^(8)x+cos^(8)x=1 in the interval [-2 pi,2 pi]

The number of solutions of the equation (3+cos x)^(2)=4-2sin^(8)x" in "[0, 9pi) is equal to

2sin((pi)/8)sin((2pi)/8)sin((3pi)/8)sin((5pi)/8)sin((6pi)/8)sin((7pi)/8) = ?

The solutions of the equation 1+(sin x-cos x)sin(pi)/(4)=2cos^(2)(5x)/(2) is/are x=(n pi)/(3)+(pi)/(8),n in Zx=(n pi)/(2)+(5 pi)/(16),n in Zx=(n pi)/(3)+(pi)/(4),n in Zx=(n pi)/(2)+(5 pi)/(8),n in Z

The possible values of theta in (0, pi) such that sin (theta) + sin (4 theta) + sin (7 theta) = 0 are (1) (2 pi) / (9), (i) / (4 ), (4 pi) / (9), (pi) / (2), (3 pi) / (4), (8 pi) / (9) (2) (pi) / (4), (5 pi ) / (12), (pi) / (2), (2 pi) / (3), (3 pi) / (4), (8 pi) / (9) (3) (2 pi) / (9 pi) ), (pi) / (4), (pi) / (2), (2 pi) / (3), (3 pi) / (4), (35 pi) / (36) (4) (2 pi ) / (9), (pi) / (4), (pi) / (2), (2 pi) / (3), (3 pi) / (4), (8 pi) / (9)

sin((13pi)/3)sin((8pi)/3)+cos((2pi)/3)sin((5pi)/6)=1/2