How to find the product of (sinA-cosA)*(sin^2A+sinA*cosA+cos^2A) ?

1 Answer
Mar 27, 2018

(sinA−cosA)⋅(sin^2A+sinA⋅cosA+cos^2A)

sinA(sin^2A+sinA⋅cosA+cos^2A)−cosA(sin^2A+sinA⋅cosA+cos^2A)

sin^3A+sin^2AcosA+sinAcos^2A−cosAsin^2A-sinAcos^2A-cos^3A

=> sin^3A - cos^3A