Question

Simplify the following expression:
sin^3 A + cos^3 A/ sin A + cos A​

Answer 1

Answer:

Sin^2A +Cos^2A + SinAcosA

Step-by-step explanation:

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Answer 2

Step-by-step explanation: m3={SinA+cosA}3

m3=Sin3A+cos3A+3Sin2ACosA+3SinACos2A

m3=Sin3A+Cos3A+Cos3A{1-Cos2A}+3SinA{1-Sin2A}

m3=Sin3A+Cos3A+3CosA-3Cos3A+3SinA-3Sin3A

m= -2Sin3A-2Cos3A+3{SinAQ}

m3=-2{Sin3A+Cos3A}+3{SinA+CosA}

m3= -2n+3m

=m3+2n-3m=0