MCQ
The eccentricity of rectangular hyperbola is :
- A0
- B1
- ✓$\sqrt{2}$
- D2
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In the expansion of $\Big(\text{x}^{2}-\frac{1}{3\text{x}}\Big)^{9},$ the term without x is equal to:
$\frac{28}{81}$
$\frac{-28}{243}$
$\frac{28}{243}$
None of these.
Three digit numbers are formed using the digits 0, 2, 4, 6, 8. A number is chosen at random out of these numbers. What is the probability that this number has the same digits?
Given the three straight lines with equations 5x + 4y = 0, x + 2y - 10 = 0 and 2x + y + 5 = 0, then these lines are: