13.sin^(2)(3x+4)

3 sin^(2) x -4 cos^(2) x in

Solve the equation sin^(4)x+cos^(4)x-2sin^(2)x+(3sin^(2)2x)/(4)=0

If f(x)=sin^(2)x+sin^(2)(x+(2pi)/(3))+sin^(2)(x+(4pi)/(3)) then :

If f(x)=sin^(2)x+sin^(2)(x+(2pi)/(3))+sin^(2)(x+(4pi)/(3)) then :

Number of solution of the equation sin^(2)x+(sin^(2)3x)/4=sinx sin 3x , in x epsilon(0,3pi) equals

"int sin^(3)((2)/(3)x)cos^(4)((2)/(3)x)dx

Evaluate: lim_(xto oo)(2x^(2)-2x-sin^(2)x)/(3x^(2)-4x+cos^(2)x)

Evaluate: lim_(xto oo)(2x^(2)-2x-sin^(2)x)/(3x^(2)-4x+cos^(2)x)

Find the number of solutions of the equation sin^(4)x+cos^(4)x-2sin^(2)x+(3)/(4)sin^(2)2x=0 in the interval [0,2 pi]

If 1+2sin x+3sin^(2)x+4sin^(3)x+... upto infinite terms = 4 and number of solutions of the equation in [ (-3pi)/(2), 4pi] is k. The value of k is equal to