DELSU Mathematics 2011/2012 Past Questions

Practice each question, then open it to see the full details.

Evaluate ∫₀ Cos x dx

A.1
B.2
C.π

The geometric mean of 4 and 9

A.13
B.5
C.36

The sides of a right angled triangle is xcm, (X - 1)cm and (x-2)cm. find x

A.5
B.6
C.3

Factorise x³-1

A.(x-1)³
B.(x-1)(-1)(x-1)
C.3(x-1)

Given that log₅2 = 0.431 and log₅3= 0.682, the value of log₅3/8 - 2log₅4/5log₅2/5 is

A.-1.271
B.-0.318
C.-2.104

Evaluate (625)^-1/4

A.3/11
B.1/7
C.1/5

Find the universal set U = {-3

A.{-1,3}
B.{-3,-2,1}
C.{-1,0,3,4}

The area of a triangle of sides 5cm, 6cm and 7cm is

A.6√6cm²
B.120cm²
C.2√11cm²

The perpendicutar disiance of a chord from the centre of a circle of radius 10cm is 6cm. find the length of the cord.

A.16cm
B.26cm
C.Scm

At what point does the curve x² - 3x+2 cut the line y= 0

A.x =2, x=1
B.x=-1, x= -2
C.x=-2, x= 1
D.x=4,x=2

Simplify 2^-3x 163/4

A.8
B.2
C.4

If x varies directly as vy and x = √9 when y= 9, then the value of x when y=17/9 is

A.9
B.4
C.15

Ann walks for 5m from a point A to a point B northwards. From B, she walks eastwards to a point C on the bearing 030°. How far is she from B?

A.5√3/3m
B.3√5/2m
C.5√3/2m