C: 13
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Matrices A and B are such that A = (-1 4; 7 6) and B = (2 1; 3 5)
Matrices X, Y and Z are such that X = beginpmatrix 2 & 3 1 & 1/2 endpmatrix, Y = beginpmatrix 1 & 3 4 & 5 6 & 7…
Given that the matrix X = [2 -4; k 0], find X² in terms of the constant k.
It is given that f(x) = 3e²ˣ for x ≥ 0, g(x) = (x + 2)² + 5 for x ≥ 0.
Solve 4 sin x = cosec x for 0° ≤ x ≤ 360°.
Given that the graph of y = (2k+ 5)x² + kx + 1 does not meet the x-axis, find the possible values of k.