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Algebraically determine whether the following function is Even, Odd, or Neither.
f(x)= x^3-2x

1 Answer

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Answer:

f(-x)= -f(x) so, the given function
f(x)= x^3-2x is Odd

Explanation:

We need to determine if the function
f(x)= x^3-2x is Even, Odd, or Neither.

Determining if a function f(x) is even or not we put x=-x and check

If f(-x)=f(x) the function is even

if f(-x)= -f(x) the function is odd

So, Putting x =-x and determining if the given function
f(x)= x^3-2x is Even, Odd, or Neither.


f(x)= x^3-2x\\Put \ x=-x\\f(-x)=(-x)^3-2(-x)\\f(-x)=-x^3+2x\\f(-x)=-(x^3-2x)\\f(-x)=-f(x)

As f(-x)= -f(x) so, the given function
f(x)= x^3-2x is Odd

User Ram Manohar
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