774 QUALIFIER Mathematics

If P=1121, find P2+P

• 4361

• 4364

• 4261

• 3264

Given that 2−314−6p=3−26, find the value of p

• −8

• −5

• 4

• −3

For what value of x is x²−9x+18/x²+2x−35 undefined?

• −18 or−9

• −5 or 7

• −7 or 5

• 9 or 18

P, Q, R are points in a plane such that PQ=8i−5j, QK=5i+7j, RS=7i+3j and PS=xi+yj. Find x, y.

• −6, −15

• −6, 5

• (20, 5)

• 20, 15

The sum of product of the roots of a quadratic equation are 47 and 57 respectively. Find its equation.

• 7x²−4x−5=0

• 7x2−4x+5=0

• 7x2+4x−5=0

• 7x2+4x+5=0

Two forces 10N and 6N act in the directions 060⁰and 330⁰ respectively. Find the x−component of their resultant

Find the unit vector in the direction of the vector −12j+5j

• 12/13i−5/13j

• 1/13i+5/13j

• 12/13i+5/13j

• 5/12i+12/13j

Given that a^5/6 × a^−1/n=1, solve for n

• −6.00

• −1.20

• 0.83

• 1.20

Which of the following binary operation is not commutative?

• a∗b=1a+1b

• a∗b=a+b−ab

• a∗b=2a+2b+ab

• a∗b=a−b+ab