Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Mathematics Relations and Functions

The function \(\rm f(x)=\frac{x^2+2x-15}{x^2-4x+9}\) x ∈ R is

1
both one-one and onto. 
2
onto but not one-one. 
3
neither one-one nor onto. 
4
one-one but not onto. 
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