MCQ
Solution of $|\text{x} – 1|\geq|\text{x}-3| $ is:
- A$\text{x}\leq2$
- B$\text{x}\geq2$
- C$\big[1, 3\big]$
- D$\text{None of these}$
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If A and B are the sums of odd and even terms respectively in the expansion of $(\text{x}+\text{a})^{\text{n}},$ then $(\text{x}+\text{a})^{\text{2n}}-(\text{x}-\text{a})^{2\text{n}}$ is equal to:
Six boys and six girls sit in a row randomly. The probability that all girls sit together is