Question 577930
(sin(Ø)+cos(Ø))(1-sin(Ø)cos(Ø))=sin^3(Ø)+cos^3(Ø)


sin(Ø)-sin^2(Ø)cos(Ø)+cos(Ø)-sin(Ø)cos^2(Ø)=sin^3(Ø)+cos^3(Ø)


sin(Ø)-(1-cos^2(Ø))cos(Ø)+cos(Ø)-sin(Ø)(1-sin^2(Ø))=sin^3(Ø)+cos^3(Ø)


sin(Ø)-cos(Ø)+cos^3(Ø)+cos(Ø)-sin(Ø)+sin^3(Ø)=sin^3(Ø)+cos^3(Ø)


(sin(Ø)-sin(Ø))+(-cos(Ø)+cos(Ø))+(sin^3(Ø)+cos^3(Ø))=sin^3(Ø)+cos^3(Ø)


sin^3(Ø)+cos^3(Ø)=sin^3(Ø)+cos^3(Ø)



So this verifies the identity.