exam
Maths Puzzle
Numerical Ability
evaluate as possible
/(4/25) (radical equation)
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exam Other Question
Which set of ordered pairs is a function?
(2,3),(-4,5),(2,7),(7,-2)
(2,3),(-4,5),(-2,7),(-4,-2)
(2,3),(-4,5),(-2,7),(7,7)
(2,3),(-4,5),(2,-7),(7,-2)
If r and s are roots of x2-8x-3 =0, find the values of 1/r=1/s and (1/r)(1/s)