exam
Maths Puzzle
Numerical Ability
which of the following is equal to the rational expression when x ≠ -1 or -7?
(x+1)(x-1)/(x+7)(x+1)
a.x+1/x+7
b.x+7/x-1
c.x-1/x+7
Read Solution (Total 0)
exam Other Question
The equation of a circle with centre O(0, 0) is x² + y² = 10. The points C(3, 1) and D(1, -3) are the endpoints of chord CD. EF right bisects chord CD at G. Verify that the centre of the circle lies on the right bisector of chord CD.
thank you
Evaluate and write the result using scientific notation:
(4.7 x 10^-7)(1.8 x 10^9)