Question 26:

• JAMB 2019

If \(4\sin^2 x - 3 = 0\), find the value of x, when 0° \(\leq\) x \(\leq\) 90°

A. 90°
B. 45°
C. 60°
D. 30°

Question 27:

• JAMB 2019

If \(6x^3 + 2x^2 - 5x + 1\) divides \(x^2 - x - 1\), find the remainder.

A. 9x + 9
B. 2x + 6
C. 6x + 8
D. 5x - 3

Question 28:

• JAMB 2019

Score(x)	0	1	2	3	4	5	6
Freq(f)	5	7	3	7	11	6	7

Find the mean of the data.

A. 3.26
B. 4.91
C. 6.57
D. 3.0

Question 29:

• JAMB 2019

Score(x)	0	1	2	3	4	5	6
Freq(f)	5	7	3	7	11	6	7

Find the variance

A. 3.42
B. 4.69
C. 4.85
D. 3.72

Question 30:

• JAMB 2019

The locus of a point which moves so that it is equidistant from two intersecting straight lines is the

A. Bisector of the two lines
B. Line parallel to the two lines
C. Angle bisector of the two lines
D. Perpendicular bisector of the two lines