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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Originally Posted by tironci 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 Say . For any let then and .
So, it is one-to-one and onto? Thank you
Originally Posted by tironci So, it is one-to-one and onto? What is the definition of one-to-one? What is the definition of onto? Does the above post prove those things?
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