Precalculus chapter 1

Mathematics
Tutor: None Selected Time limit: 1 Day

May 13th, 2015
a)f(x) = x5 + x3 + x
f(−x)  =  (−x)5 + (−x)3 + (−x)
 =  −x5x3x
 =  −(x5 + x3 + x)
 =  −f(x).

b) f(x) = x4 + x2 + 3
f(−x)  =  (−x)4 + (−x)2 + 3
 =  x4 + x2 + 3 
f(x).

c) f(x) = x3 + x2 + x + 1

because f(−x) ≠ f(x)  and f(−x) ≠ −f(x).

All the best


May 13th, 2015

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