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Maths Puzzle
Numerical Ability
how can i find the argument of (1+i)^13/(1-i)^7
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book Other Question
a truck traveling 45 mph and a train traveling 60 mph cover the same distance . the trucks travels 2 hours longer than the train. how many does each travel
I need help solving this problem, please. I haven't taken math in years and I don't even know where to begin. Thanks in advance.
2-(8y-t)/4y+(7y+6t)/3y