\(\frac{2}{3}\)
2
3
\(\frac{3}{2}\)
Correct answer is D
For perpendicular vectors, their dot product = 0.
\((4i - kj). (3i + 8j) = 12 - 8k = 0\)
\(8k = 12 \implies k = \frac{3}{2}\)
If \(\int^3_0(px^2 + 16)dx\) = 129. Find the value of p...
Given that \(a = i - 3j\) and \(b = -2i + 5j\) and \(c = 3i - j\), calculate \(|a - b + c|\)....
Find correct to the nearest degree,5 the angle between p = 12i - 5j and q = 4i +3j...
Evaluate \(\int_{-1}^{0} (x+1)(x-2) \mathrm{d}x\)...
Find the coefficient of \(x^{3}\) in the expansion of \([\frac{1}{3}(2 + x)]^{6}\)...
The equation of a circle is \(3x^{2} + 3y^{2} + 24x - 12y = 15\). Find its radius....