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Is f(x)=2x+1 N-N onto function?

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Is f(x)=2x+1 N-N onto function?

Posted by Mohit Agarwal 6 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Ansh Preet 6 years, 3 months ago

Yess the function is onto Let fx =y or x= f inverse y Now ...we have 2x+1 =y Hence x=(y-1)/2.. As y takes all the values from (-inf to +inf) Range of fx is same as the domain of x. Hence, the given function is onto ??hope this is helpful for uh

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