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Maths Puzzle
Numerical Ability
Triangle ABC has area 240. Points X,Y,Z lie on sides AB,BC, and CA, respectively. Given that segment AX/BX=3, BY/CY=4, CZ/AZ=5, find the area of triangle XYZ.
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book Other Question
System of Equations with 3 variablies
4x – 5y – 5z = –24
–x – y + 3z = 13
5x + y + 4z = 11
Let T be a linear operator in V. Prove that T^2 = 0 if and only if the range T is a subset of null T.