O level north west regional mock gce 2022 additional mathematics 1
O level north west regional mock gce 2022 additional mathematics 1
Given tliat a and ff are the roots of the equation
3x ~ — 4x— 7 — 0, then the sum of the roots is
l. 11. The sum to infinity of a G.P with first term 12
common ratio – is:
and
13. The coefficient of x ~ in the binomial
14. The term independent of x in the binomial expansion of
(2 -f x)s is:
A. 2
D.
3 – •••
5. The condition for which the quadratic equation
px ~ — qx = — has real roots where p, q and r are
constants is:
B. 5
C. 32
q 2 — 4p(—r) > 0
qz -r 4 pr > 0
-qr— 4jp(-r) > 0
q 2 -4pr 0
A D. 6
15. The number of Wayc in which the letters oftho word
“CHARACTER” can be arranged is:
6. The quadratic equation x 2 — bx + c = 0 has roots a
and 8 . The value of a2 4- Bz is:
16. The number of ways in which an executive of 3 is to be
chosen from 5 boys is:
A. ’
C.
D.
5!
7. The remainder when 2x 3 — 3x 2 + ?nx — 4 is
divided by ( x — 2) is zero. The value of m is:
17. cos29 =
The quotient when x 2 — x 2 — 4x + 4 is divided by
( x — 1) is:
8. A. cos 29 + sin29
B. 2COS~9 – 1
(*- 2)(x + 2)
(x – 2)(x- 2)
( x + 2)( x + 2)
(r- l)(x + 2)
A.
sin29
-sin29
C .
B.
C. D. 2
D. 5.7
—6 in degrees is:n
300°
180°
270°
150°
18.
9. If the n t h term of the progression 2,5,8
Then the value of n is:
