MCQ
Evaluate:$ \displaystyle\lim_{\text{x}\rightarrow 2} \dfrac{\text{x}^2-4}{\text{x}+3}:$
- A0
- B1
- C-1
- DNone of these
Solution:
Using direct substitution, we obtain,$ =\displaystyle\lim_{\text{x}\rightarrow 2} \dfrac{\text{x}^2-4}{\text{x}+3}$
$ =\dfrac{4-4}{2+3}=0$
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-2
0
$\frac{1}{2}$
does not exist
The equation of directrix and latus rectum of a parabola are 3x - 4y + 27 = 0 and 3x - 4y + 2 = 0. Then the length of latus rectum is: