The area of the parallelogram formed by the lines $y = mx,\,y = mx + 1,\,y = nx$ and $y = nx + 1$ equals
The area of the parallelogram formed by the lines $y = mx,\,y = mx + 1,\,y = nx$ and $y = nx + 1$ equals
- [IIT 2001]
- A
$\frac{{|m + n|}}{{{{(m - n)}^2}}}$
- B
$\frac{2}{{|m + n|}}$
- C
$\frac{1}{{|m + n|}}$
- D
$\frac{1}{{|m - n|}}$
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