Composite of odd functions is odd: Difference between revisions

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==Statement==
==Statement==
===Statement for two functions===


Suppose <math>f</math> and <math>g</math> are [[fact about::odd function]]s so that the [[fact about::composite of two functions|composite]] <math>f \circ g</math> makes sense. Then, <math>f \circ g</math> is also an [[odd function]].
Suppose <math>f</math> and <math>g</math> are [[fact about::odd function]]s so that the [[fact about::composite of two functions|composite]] <math>f \circ g</math> makes sense. Then, <math>f \circ g</math> is also an [[odd function]].
Note that composition of functions does not commute, so if we can make sense of both <math>f \circ g</math> and <math>g \circ f</math>, these are ''both'' (possibly equal, possibly distinct) odd functions.
===Statement for more than two functions===
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Revision as of 12:51, 28 August 2011

Statement

Statement for two functions

Suppose f and g are odd functions so that the composite f∘g makes sense. Then, f∘g is also an odd function.

Note that composition of functions does not commute, so if we can make sense of both f∘g and g∘f, these are both (possibly equal, possibly distinct) odd functions.

Statement for more than two functions

Fill this in later