exam
Maths Puzzle
Numerical Ability
Find the roots of z^6=1 for z complex. Show that the sum of the roots you found is zero.
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exam Other Question
Solve
x + y + z = 5
x - 2y + z = 8
3x - y - z = 3
solve the formula for the perimeter of a regtangle p = 2(l+w) for the with w.