Prove that sin3A+sin2A-sinA = 4sinAcosA/2cos3A/2

If sinA+tanA=p then sin2A?

prove that sinA-cosA+1/sinA+cosA-1=1/secA-tanA

Prove : (sinA-cosA+1)/(sinA+cosA-1) = (1+sinA)/cosA

Prove that sin²A-sin²B/sinAcosA-sinBcosB = tan(A+B)

Prove : 1 + Sin2A/ Cos2A = CosA + SinA / CosA- SinA

Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2

Prove That Sin2A+SIN2B+SIN2C/SINA+SINB+SINC=8SinA/2SINB/2SINC/2

Prove that [sinA/(1-cosA)-(1-cosA)/sinA]*[cosA/(1+sinA)+(1+sinA)/cosA]=4cosecA I the second part as...

Prove that (cos2A)÷ ( 1+sin2A) = (cotA -1) ÷ (cotA +1)

If a cosA - b sinA = c . Prove that a sinA + b cosA = _+√a^2 + b^2 - c^2

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