Question 743864
Verify the expression: cos^3 + sin^2 cos = cos 

Cos^3 + sin^2 cos = cos
Cos x cos^2 + sin^2 cos= cos ****** cos*(cos^2 + sin^2) = cos
cos*1 = cos
cos = cos
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Cos + 1 cos = cos 

Where do I go from there?