Mathematics Tes...

Let \(A=\left[\begin{array}{ll}2 & 4 \\ 3 & 2\end{array}\right], B=\left[\begin{array}{cc}1 & 3 \\ -2 & 5\end{array}\right], C=\left[\begin{array}{cc}-2 & 5 \\ 3 & 4\end{array}\right]\) Find \({A}+{B}=?\)

Let \(p\) and \(q\) be two positive numbers such that \(p + q =2\) and \(p ^{4}+ q ^{4}=272\). Then \(p\) and \(q\) are roots of the equation:

A game of chance consists of spinning an arrow which is equally likely to come to rest pointing to one of the number \(1,2,3 \ldots \ldots 12\), then the probability that it will point to an odd number is:

The value of \(\left|\begin{array}{ccc}a & b & c \\ b+c & c+a & a+b \\ a^2 & b^2 & c^2\end{array}\right|\)

The value of $\sin \frac{\pi }{10}+\sin \frac{13\pi }{10}$is:

If \(z=-2+5 i\) then \(z^{2}+4 z+30\) is:

Three vectors of magnitudes \(a, 2a, 3 a\) meet at a point and their directions are along the diagonals of three adjacent faces of a cube. Then, the magnitude of their resultant is:

In the expansion of \(\left(x^{3}-\frac{1}{x^{2}}\right)^{15}\), the constant term, is: