exam
Maths Puzzle
Numerical Ability
Geometry
What is the radius of the circle circumscribing an isosceles right triangle having an area of 162 square centimeters?
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exam Other Question
Simplify by removing factors of 1
x^2-1/1-x
Use the Gauss-Jordan method.
4x - 3y + z + w = 21
-2x - y + 2z + 7w = 2
10x - 5z - 20w = 15