`SinA + 2Sin2A + Sin3A` is equal to which of the following? (1.) `4sin2A cos^2(A/2) (2.) 2sin2A(sinA/2+cosA/2)^2 (3.) 8sinAcosAcos^2(A/2)`

Sin A + 2sin 2A + sin3A is equal to which of the following? 1. 4sin 2A cos^2(A/2) 2. 2 sin 2A (sinA/2+cosA/2)^2 3. 8 sin A cos A cos^2(A/2) Select the correct answer using the codes given below:

sin A+2sin2A+sin3A is equal to which of the following? (1.) 4sin2A cos^(2)((A)/(2))(2.)2sin2A((sin A)/(2)+(cos A)/(2))^(2)(3.)8sin A cos A cos^(2)((A)/(2))

Prove the following identity: (sin^3A+cos^3A)/(sinA+cosA)+(sin^3A-cos^3A)/(sinA-cosA)=2

Prove the following : sin2A+sin2B+sin2(A-B) = 4sinA.cosB.cos(A-B)

Prove that following identities (sin^(3)A+cos^(3))/(sinA+cosA)+(sin^(3)A-cos^(3)A)/(sinA-cosA)=2

((sinA-2sin^(3)A))/((2cos^(3)A-cosA)) = ?

Prove the following : sinA-sin3A+sin5A = sin3A(2cos2A-1)

Prove the following : sinA+sin3A+sin5A =sin3A(1+2cos2A)

(sin3A)/(sinA)-(cos3A)/(cosA)=2