Form 5 Modern Mathematics
Revision Questions SET 1 ( Matrix & Variation)
Prepared by : R. Sharuvindan Nair BSc Physics
1. Given the value of the determinant of the
matrix
−c3
54 is -11.
Find the value of c.
4. Given two equations: 5g + 2h = -4 -6g – h = 9 Express the simultaneous equation above in matrix form . Hence find the values of g and h.
“Small minds discuss persons. Average minds discuss events. Great minds discuss ideas. Really great minds discuss mathematics.” - Dean Schlicter
2. Find the inverse of
−21
35
3. Express
−
3
2
61
35as a single matrix
5. Given that v varies directly as the square root of w and inversely as x, complete the table below :
v w x 3 25 2 2 9
6. Given that ∝a 3z
y and a = 7 when y = 7
and z = 4. (a) express a in terms of y and z. (b) find the value of a when y =10 and z= 8
