IIT JEE 1983 Maths - True or False Q6

Algebra Level 3

True or False?

\quad The function f ( x ) = x 2 + 4 x + 30 x 2 − 8 x + 18 f(x)=\dfrac {x^2+4x+30}{x^2-8x+18} is not onto R \mathbb{R} .

In case you are preparing for IIT JEE, you may want to try IIT JEE 1983 Mathematics Archives .
True False

Shubhamkar Ayare by Shubhamkar Ayare , 22, India

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1 solution

Prince Loomba
Jan 20, 2017

It is easy to see, that it will not be 0. So not onto.

2 Helpful 0 Interesting 1 Brilliant 0 Confused

Well that's called elegance! :)

Prakhar Bindal - 4 years, 3 months ago

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