exam
Maths Puzzle
Numerical Ability
Determine whether the pair of fractions is proportional: 2/5=6/15
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exam Other Question
Please help me compute in simplified form:
f(g(x))
when f(x)= 25-7x and g(x)=13
Let w (omega) be a root of the equation x^2 + x + 1 = 0. Define a complex valued function f by f(n) = (w^2n)/(1 + w^n).
What is f(1)+ f(2) + f(3) + ... + f(20)?