In how many ways can 3 prefects be chosen out of 8 prefec...
In how many ways can 3 prefects be chosen out of 8 prefects?
6
24
56
336
Correct answer is C
= \(^{8}C_{3} = \frac{8!}{(8 - 3)! 3!}\)
= \(\frac{8 \times 7 \times 6}{3 \times 2}\)
= 56 ways
Find the minimum value of \(y = x^{2} + 6x - 12\)....
Simplify; \(\frac{\sqrt{5} + 3}{4 - \sqrt{10}}\) ...
If\((\frac{1}{9})^{2x-1} = (\frac{1}{81})^{2-3x}\)find the value of x...
Find the radius of the circle \(2x^2 + 2y^2 - 4x + 5y + 1 = 0\)...
Solve \(9^{2x + 1} = 81^{3x + 2}\)...
Simplify \(\frac{x^{3n + 1}}{x^{2n + \frac{5}{2}}(x^{2n - 3})^{\frac{1}{2}}}\)...