\(\begin{pmatrix} 1 & 1 \\ -1.5 & -2 \end{pmatrix}\)
\(\begin{pmatrix} 1 & -1 \\ 1.5 & -2 \end{pmatrix}\)
\(\begin{pmatrix} -2 & 1 \\ 1.5 & 1 \end{pmatrix}\)
\(\begin{pmatrix} -2 & -1 \\ 1.5 & 1 \end{pmatrix}\)
Correct answer is A
Let A = \(\begin{pmatrix} 4 & 2 \\ -3 & -2 \end{pmatrix}\);
|A| = -8 - (-6) = -8 + 6
|A| = -2
A\(^{-1}\) = \(\frac{1}{-2}\) = \(\begin{pmatrix} -2 & 2- \\ 3 & 4 \end{pmatrix}\)
= \(\begin{pmatrix} 1 & 1 \\ -1.5 & -2 \end{pmatrix}\)
The mean and median of integers x, y, z and t are 5 and z respectively. If x < y < z < t an...
Simplify \(8^{n} \times 2^{2n} \div 4^{3n}\)...
Express \(\frac{2}{3 - \sqrt{7}} \text{ in the form} a + \sqrt{b}\), where a and b are integers....
A stone is thrown vertically upward and distance, S metres after t seconds is given by S = 12t ...
Evaluate \(\int_{-1}^{1} (x + 1)^{2}\mathrm {d} x\). ...
Simplify \(\frac{\sqrt{3} + \sqrt{48}}{\sqrt{6}}\)...
Given that r = (10 N , 200º) and n = (16 N , 020º), find (3r - 2n). ...