book
Maths Puzzle
Numerical Ability
A total of 691 tickets were sold for the school play. There were 59 fewer student tickets sold than adult tickets. How many adult tickets were sold?
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book Other Question
log (1 + cos x + i sin x)/(cos x – 1 – i sin x)
Solve for x, y, and z in the following system of equations.
x + 2y + z = 2
5x = z
y = -2x
Any help is appreciated. Thank you in advance!