exam
Maths Puzzle
Numerical Ability
How many four-element subsets containing two vowels and two consonants can be formed from the set {a, b, c, d, e, f, g, h, i}?
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exam Other Question
Algebraically determine the zero(s) of the functions:
a) f(x)=(sqrt2(5)^-(x+1))-(sqrt50)
b) f(x)=sqrt3(2)(^2(x-3))-sqrt48
Solve using the quadratic formula:
25x2+30x+9=0