\frac { \cos ^ { 3 } A + \sin ^ { 3 } A } { \cos A + \sin A } + \frac – InterviewSolution

1.	\frac { \cos ^ { 3 } A + \sin ^ { 3 } A } { \cos A + \sin A } + \frac { \cos ^ { 3 } A - \sin ^ { 3 } A } { \cos A - \sin A } = 2
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