Prove that `cos 5A = 16 cos^5A - 20 Cos^3 A + 5 cos A`

Prove that: cos5A=16cos^5A-20cos^3A+5cosA

Prove that: cos5A=16cos^(5)A-20cos^(3)A+5cos A

Prove that, cos5A=16cos^(5)A-20cos^(3)A+5cosA

Prove that: cos5A=16cos^(5)A-20cos^(3)A+5cosA

cos5x= 16 cos^(5) x -20 cos^(3) x +5 cos x in

Prove that cos 50 = 16 cos^(5)theta - 20 cos^(3) theta + 5 cos theta

Prove that: (cos 2A cos 3A -cos 2A cos 7A + cos A cos 10A)/("sin" 4A sin 3A - sin 2A sin 5A + sin 4A sin 7A) = cot 6A cot 5A

Prove that cos 5x =17 cos^(5) x -2 theta cos^(3) x+ 5 cos x

Prove that: (cos 2A cos 3A-cos 2A cos 7A + cos A cos 10A)/(sin 4A sin 3A -sin 2A sin 5A + sin 4A sin 7A)= cot 6A cot 5A .

Prove that 16 cos ^(5) theta - 20 cos ^(3) theta + 5 cos theta = cos 5 theta.