1.
a) 1
b) 0
c) -7
d) 2
2.
a) 0
b) 27
c) 10
d) -11
3.
c) -36
d) 128
4.
a) 1224
b) -28
c) 112
d) 173
5. Solve:
a) x = ± 1
b) x = 0, x = 1
c) Φ
d) x = 0, x = -1
6. Find x to make that
if a ≠ 0
a) x = a
b) x = a, x = b
c) x = a, x = b, x = c
d) x = b, x = c
7. If
calculate:
a) |B|=|C|=5
b) |B|=10,|C|=5
c) |B|=|C|=10
d) |B|=10,|C|=25/2
8. (PAEG- June 2013) If
b) 4
c) -2
9. If
calculate A-1
a)
b)
c)
d) A is a singular matrix
10. Find the values of x to make A singular:
a) x = ±√7
b) x = 0
c) x = ±7
d) Φ
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