Mathematics Past Questions and Answers

If Q is\( \left[ \begin{array}{cc}
9 & -2 \\
-7 & 4 \\
\end{array} \right]\) , then |Q| is

If P \(=\left[\begin{array}{cc}x+3 & x+2\\
x+1 & x-1\end{array}\right]\) evaluate x if |P| = -10

Find the acute angle between the straight lines y = x and y = √3x

A regular polygon has 150^o as the size of each interior angle. How many sides does it have?

In the figure above , TS//XY and XY = TY, ∠ SYZ = 34°, ∠ TXY = 47°, find the angle marked n