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Maths Puzzle
Numerical Ability
this is a practice problem for a placement test for college. I have the answer but I dont understand how they got it. Help Please! 7x-8(y-x)+3y= 5(3x-y)
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3(1.3^x)=X^2-2
Hi, could you tell me how can I simplify this expression: (1+2i)^(2i).
I know the trick to solve this problem is to recognize the expression as e^(2i*Log(1-i)).
Then it simpl