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January 29, 2015

January 29, 2015

Posted by **Kennedy** on Monday, December 15, 2008 at 3:57pm.

f(x)=ab.solute value of x.

f(x)=x^3

f(x)=x^4

f(x)=x^3

f(x)=x^4,xless then or equal 0.

how do i know if they have an inverser, can someone please explain:) thanks for your time YOOO

- math -
**bobpursley**, Monday, December 15, 2008 at 4:18pmx^3 has an inverse, as does x^4 x<=0

Why? The others do not have a one for one mapping from x to one f(x).

for instance, x^4 f(-sqrt2)=f(sqrt2)

http://www.uncwil.edu/courses/mat111hb/functions/inverse/inverse.html#sec1

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