`sin4A=4sinAcos^3A-4cosAsin^3A`

Prove that, sin4A=4sinAcos^(3)A-4cosAsin^(3)A

Prove that, sin4A=4sinAcos^(3)A-4cosAsin^(3)A .

Prove that sin4A=4sinAcos^3A-4sin^3A

Prove that : sin 4A=4 sinA cos^3 A- 4 cosA sin^3 A .

Statement I: cos 52^(@)+cos68^(@)+cos172^(@)=1/2 Statement II: 4sin Acos^(3)A-4cosAsin^(3)A=cos4A Which of the above statements is correct?

Statement II: 4sin A cos^(3)A-4cos A sin^(3)A=cos4A Which of the above statements is correct?

2sinAcos^3A-2sin^3AcosA=

The value of 4 sin A cos ^3 A -4 cos sin^3 A is equal to

Prove that sin 4A=4 sin A cos^(3) A-4 cos A sin^(3) A