Hi everyone,

I have a math problem i am having a hard time solving. Can someone please help me?

Show whether or not the function f:R+ -> R+ defined by f(x) = (1/x^2) is

Injective (one-to-one) or

Surjective(onto)

Thank you in advance

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- March 12th 2008, 07:44 PMtironciInjective and surjective
Hi everyone,

I have a math problem i am having a hard time solving. Can someone please help me?

Show whether or not the function f:R+ -> R+ defined by f(x) = (1/x^2) is

Injective (one-to-one) or

Surjective(onto)

Thank you in advance - March 12th 2008, 07:49 PMThePerfectHacker
- March 13th 2008, 08:21 PMtironciInjective and surjective
So, it is one-to-one and onto?

Thank you - March 13th 2008, 08:35 PMThePerfectHacker