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(sin3A)/(sin A)-(cos3A)/(cos A)...

(sin3A)/(sin A)-(cos3A)/(cos A)

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(sin^(3)A+sin3A)/(sinA)+(cos^(3)A-cos3A)/(cosA) is equal to

On simplifying (sin^3A+sin3A)/(sinA)+(cos^3A-cos3A)/(cosA) we get

(sin^2 3A)/(sin^2A)-(cos^2 3A)/(cos^2A)=

(sin^2 3A)/(sin^2A)-(cos^2 3A)/(cos^2A)=

Prove that: (sin3A+sin A)sin A+(cos3A-cos A)cos A=0

Prove that: \ (sin3A+sin A)sin A+(cos3A-cos A)cos A=0

Prove that : (sin3A+sin A)sin A+(cos3A-cos A)cos A=0

(sin^(2)3A)/(sin^2A)-(cos^(2)3A)/(cos^2A)=

(sin^(3) A + sin 3A)/( sin A )+ (cos^(3) A - cos 3A)/( cos A )=

8. (sin3A + sin A) sin A + (cos3A-cos A) cos A = 0