SOLUTION: Prove that if f(x) and g(x) are both even functions, then h(x) = f(x) + g(x) is an even function.

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Question 980559: Prove that if f(x) and g(x) are both even functions, then h(x) = f(x) + g(x) is an even function.
Answer by solver91311(24713) About Me  (Show Source):
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Definition of even function

Definition of even function

Addition property of Equality

Definition

Substitution

is even by definition of even function. Q.E.D.

John

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