O level south west regional mock gce 2022 additional mathematics 1
O level south west regional mock gce 2022 additional mathematics 1
8. (x +1) divides the expression 5x 3 + kx 2 – 2
without a remainder. Then the value of k is
2 lpgflP _
loga <?
D 7
logqP
l0ga(p<7)
‘loga(p- q)
logfl(J)
A
9. The sequence 15, 5,1, , with common ratio, r,
is convergent because
it is a decreasing G.P.
it is an increasing G.P.
it is a G.P. with |r| < 1. it is a G.P. with |r| > 1.
BC
A
D B
CD
3. The conjugate of 2V5 — 4 is
2V5 + 4
4- 2V5
-4- 2V5
-2V5+ 4
A
10. The genera! term of a sequence of numbers
is given by f/„ = (—1)
the second term of the sequence is
-11
B
2n+l(5 — 8n). Then
C D
AB
11
4. The two roots of the equation
x2 – 2x -1= 0 are:
real and equal,
imaginary,
distinct.
real and distinct.
C -33
D 33
AB
11. The arithmetic mean of —2 and-8 is
C
A 5
D
B -5
C 4
5. A quadratic equation has roots a and /?.
Given that the sum of the roots is – and their
2
4 0 0
product – , the value of a /?+ aft 2 is
D
D -4
12. The sum of the first n terms of a sequence
is given as Sn = 2n(n-1). Then the
third term of the sequence is
