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hichkok12 [17]
3 years ago
9

Which of the following is an odd function?

Mathematics
2 answers:
Aleksandr [31]3 years ago
5 0

Answer: f(x)=-x

Step-by-step explanation:

When f(-x)= -f(x), then it is known as an odd function.

i) f(x) = x^3 + 5x^2 + x

Then, f(-x)=(-x)^3+5(-x)^2+(-x)=-x^3+5x^2-x\neq -x^3-5x^2-x

i.e. f(-x)\neq-f(x)

ii) f(x)=\sqrt{x}

f(-x)=\sqrt{-x}\neq-\sqrt{x}

i.e. f(-x)\neq-f(x)

iii) f(x)=x^2+x

f(-x)=(-x)^2+(-x)=x^2-x\neq-x^2-x

i.e. f(-x)\neq-f(x)

iv) f(x)=-x

f(-x)=-(-x)=x

-f(x)=-(-x)=x

i.e. f(-x)=-f(x)

Hence, f(x) is an odd function.

ElenaW [278]3 years ago
5 0

Answer:

i think its d on edge i may be wrong

Step-by-step explanation:

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