Prove that `2sin2^0+4sin4^0+6"sin"6^0++180sin180^0=90cot10^0dot`

Prove that 2sin2^(0)+4sin4^(0)+6sin6^(0)+......+180sin180^(@)=90cot1^(0)

Prove that 2sin2^(@)+4sin4^(@)+6sin6^(@)+...+180sin180^(@)=90cot1^(@)

Prove that 2 sin 2^(@)+4sin 4^(@)+6sin 6^(@)+........+180sin 180^(@)=90 cot 10^(@) .

Prove that: sin10^(0)sin30^(0)sin50^(@)sin70^(@)=(1)/(16)

Prove that: sin50^(@)-sin70^(@)+sin10^(@)=0

The arithmetic mean of the numbers 2sin2^(@), 4sin4^(@), 6 sin 6^(@), …………. 178 sin 178^(@), 180 sin 180^(@)

prove that sin10^(0)+sin20^(0)+sin40^(@)+sin50^(0)=sin70^(0)+sin80^(@)

Evaluate: sin(2\ sin^(-1)0. 6)

Prove that int_0^pi x sin^6xcos^4xdx=pi/2 int_0^pi sin^6xcos^4xdx

Solve sin2x-sin4x+sin6x=0