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Explain f(x)=x^2+x is many-one or one-one?

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Explain f(x)=x^2+x is many-one or one-one?

Posted by Rajeev Kumar Choudhary 5 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

Kiran Lata 5 years, 5 months ago

Let x1 and. x2 belong to domain. Of fx., hence, x1^2+x1 = x2^2+x2 x1^2-x2^2+x1-x2 = 0 (x1-x2) (x1+x2+1) = 0 Since, x1+x2+1 can never be equal to 0. Hence,x1-x2 = 0 x1 = x2. Therefore, f(x) is a one one Function

Kiran Lata 5 years, 5 months ago

One one. Function

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