SOLUTION: Let f(x) = cos^2 x and g(x) = sin^2 x. Write h(x) = cos(2x) as a linear combination of {f, g}

Algebra ->  College  -> Linear Algebra -> SOLUTION: Let f(x) = cos^2 x and g(x) = sin^2 x. Write h(x) = cos(2x) as a linear combination of {f, g}      Log On


   

Question 1166344: Let f(x) = cos^2 x and g(x) = sin^2 x. Write h(x) = cos(2x) as a linear combination of {f, g}
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Look up the double angle identity for cosine, then just do a straight substitution of f(x) and g(x).


John

My calculator said it, I believe it, that settles it


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