SOLUTION: Prove (SinA+CosA)^2=1+Sin2A Thank you

SOLUTION: Prove (SinA+CosA)^2=1+Sin2A Thank you

Algebra.Com

Question 400653: Prove (SinA+CosA)^2=1+Sin2A
Thank you
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Expanding the left side, we get

Since , and , the expression is equivalent to

, and we're done.
RELATED QUESTIONS
Please prove: ((cos2A)/(cosA+sinA)^3) =... (answered by Cromlix)

Prove that: ((cos2A)/(cosA+sinA)^3) =... (answered by Cromlix)

Prove the following: a) CosA/SecA = CotA b) SinA/1-CosA = CscA (1+CosA) (answered by Alan3354)

Prove... (answered by Alan3354)

PROVE THAT sinA/1+cosA +... (answered by AAfter Search)

prove the trigonometrical identities.... (answered by greenestamps)

(cotA cosA) / (1 - sinA) = cscA +1 thank... (answered by lwsshak3)

prove this cosa /(1+sina) = seca (1-... (answered by lwsshak3)

Prove these identity (1-SinA + CosA)^2 = 2(1-SinA)(1+... (answered by Edwin McCravy,ThePhysicsMathGuru,josgarithmetic)