book
Maths Puzzle
Numerical Ability
Use cramers Rule to solve the Linear system
{5x-4y=8
{2x+7y=-3
solve the equation
5x2-8=22
solve the equation
3x2+5x2-1=0
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book Other Question
The average of twelve different positive inegers is 12. What is the greatest possible value of any of these numbers?
what is the absolute value of negative 12