sin4x*sin8x

Integrate the following functions: sin 4x sin8x

Prove : underset(xrarr0)"lim"(sin6x+sin8x)/(sin4x+sin6x)=(7)/(5)

Prove that (cos3x)/(sin2x sin4x)+(cos5x)/(sin4x sin6x)+(cos7x)/(sin6x sin8x)+(cos9x)/(sin8x sin10x)=(1)/(2)(cos ecx)[cos ec2x-cos ec10x]

The solution set of sin7x+sin3x=sin2x+sin8x is (ninz)

The range of y=(sin4x-sin2x)/(sin4x+sin2x) satisfies

The range of y=(sin4x-sin2x)/(sin4x+sin2x) satisfies

int (sin4x) / (sin x) sin4x sin x

show that (1)/(2sin x)(csc2x-cos ec4x)=(cos3x)/(sin2x sin4x) and hence prove that (cos3x)/(sin2x sin4x)+(cos5x)/(sin4x sin6x)+(cos7x)/(sin6x sin8x)+......+ terms =(1)/(2sin x)[cos ec2x-cos ec(2n+2)x]

Solve: 4sin x.sin2x*sin4x=sin3x

Solve 4sin x sin2x sin4x=sin3x