ECZ 2017 · GCE Paper 2 · Question 1 — Matrices
Matrix K = 10-211-2.
(a(i)) Find the determinant of K.[2]
Verified working — step 1
K = matrix(10…(a(ii)) Find the inverse of K.[2]
Verified working — step 1
For K = abcd = 10-211-2, inverse = …(b) Solve the equation 3z2 = 7z - 1, giving your answers correct to 2 decimal places.[5]
Verified working — step 1
3z2 = 7z - 1The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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