Test your knowledge of advanced level mathematics with this aptitude test. This test comprises Further Maths questions and answers from past JAMB and WAEC examinations.
Find the equation of the normal to the curve y= 2x2 - 5x + 10 at P(1, 7)
y+x-3 =0
y-x+6=0
y - x - 6=0
y -x+ 3 =0
Correct answer is C
From y= 2x- 5x 10 ; dy/dx= 4x-5
But at (1, 7); m1 = (dy/dx)1,7
= 4(1) - 5 = -1
Using m1m2,= -1; m2 = 1.
Gradient m2, of normal at (1,7) is 1.
Using y - y1 = m(x - x1)
y - 7 = 1(x - 1) ;
y - 7 = x - 1
y - x - 6 = 0
The gradient ofy= 3x2 + 11x + 7 at P(x.y) is -1. Find the coordinates of P.
(-3, -2)
(-2,-3)
(-2,3)
(2,2)
Correct answer is B
y= 3x2 + 11x +7;
dy/dx = 6x + 11= -1;
6x = -12;
x=-2
y= 3x2 + 11x + 7
At x-2,
y= 3(-2)2 +11(-2) + 7
= 12 - 22 + 7= -3
p(x, y) = (-2,-3)
A. 12/91 B. C. D.
12/91
16/91
30/91
32/91
Correct answer is D
Total balls = 8+4+2= 14
n(R) = 8, n (B) =4, n(G) = 2
Without replacement, it is p(RB) or p(BR)
= (8/14 x 4/13) + (4/14 + 8/13) = 16/91 + 16/91
= 32/91
Consider the following statements:
X: Benita is polite
y: Benita is neat
z: Benita is intelligent
Which of the following symbolizes the statement: "Benita is neat if and only if she is neither polite nor intelligent"?
y⟺ ~x v z
y⟺ ~x v ~z
y⟺ ~x ^ ~z
y⟺ ~x ^ z
Correct answer is C
No explanation has been provided for this answer.
If 2i +pj and 4i -2j are perpendicular, find the value of p.
2
3
4
5
Correct answer is C
(2i + pi) (4i - 2j) =0
2 x 4 - p x 2=0 ;
8-2p = 0; 2p-8;
p=4