MCQ
Choose the correct answer.
If x < 5, then.
If x < 5, then.
- A$-\text{x} < – 5 $
- B$-\text{x}\leq-5$
- C$-\text{x} > – 5 $
- D$-\text{x}\leq-5$
Solution:
If x > 5 then - x > - 5.
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If $\text{f(z)}=\frac{7-\text{z}}{1-\text{z}^2},$ where z = 1 + 2i, then |f(z)| is:
$\frac{|\text{z}|}{2}$
$|\text{z}|$
$2|\text{z}|$
None of these
The domain for which the functions defined by f(x) = 3x2 – 1 and g(x) = 3 + x are equal is.
$\Big\{-1, \frac{4}{3}\Big\}$
$\Big[-1, \frac{4}{3}\Big]$
$\Big(-1, -\frac{4}{3}\Big)$
$\Big[-1, -\frac{4}{3}\Big)$
If the lines x + q = 0, y - 2 = 0 and 3x + 2y + 5 = 0 are concurrent, then the value of q will be: