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29. odd and even functions derivative problem a
function is called an odd function if it has the
property f(-x)=-f(x). similarly, f is called an
even function iff-x) = rx). for instance,
sire is odd because sin (-x) = -sin x, and
cosine is even because cos (-x) = cos x. use the
chain rule appropriately to prove that the
derivative of an odd function is an even
function and that the derivative of an even
function is an odd function.
econds.