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Let f: RrarrR be a function defined by f...

Let f: `RrarrR `be a function defined by `f(x)=(2x^2-x+5)/(7x^2+2x+10)` then f is

A

one – one but not onto

B

onto but not one – one

C

onto as well as one – one

D

neither onto nor one – one

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The correct Answer is:
D
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MOTION-FUNCTION-Exercise - 1 ( JEE Main)
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  4. Let f :RrarrR be a function defined by f(x) = x^3 + x^2 + 3x + sin x. ...

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  7. f : R -> R, where f(x)=(x^2+ax+1)/(x^2+x+1) Complete set of values of ...

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  8. The function f(x)=log((1+sinx)/(1-sinx)) is

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  9. It is given that f(x) is an even function and satisfy the relation f(x...

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  16. Which of the following is implicit functions -

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  17. I fy=f(x) satisfies the condition f(x+1/x)=x^2+1/(x^2)(x!=0) then f(x...

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  20. Let f(x) = (x+1)^(2) - 1, (x ge - 1). Then, the set S = {x : f(x) = f^...

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