1
2
3
6
Correct answer is C
\(\frac{^{8}P_{x}}{^{8}C_{x}} = \frac{8!}{(8 - x)!} ÷ \frac{8!}{(8 - x)! x!} = 6\)
\(\frac{8!}{(8 - x)!} \times \frac{(8 - x)! x!}{8!} = x! = 6\)
\(x = 3\)
The gradient of point P on the curve \(y = 3x^{2} - x + 3\) is 5. Find the coordinates of P....
Given \(\begin{vmatrix} 2 & -3 \\ 1 & 4 \end{vmatrix} \begin{vmatrix} -6 \\ k...
Find the range of values of x for which 2x\(^2\) + 7x - 15 ≥ 0....
Find the nth term of the linear sequence (A.P) (5y + 1), ( 2y + 1), (1- y),... ...
If \(\begin{vmatrix} 4 & x \\ 5 & 3 \end{vmatrix} = 32\), find the value of x....
Differentiate \(x^{2} + xy - 5 = 0\)...
Find the constant term in the binomial expansion \((2x^{2} + \frac{1}{x})^{9}\)...
Find the fourth term of the binomial expansion of \((x - k)^{5}\) in descending powers of x....