book
Maths Puzzle
Numerical Ability
Simplify each fraction or expression.
3 - 2x-2
____
x^2-1
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book Other Question
4-2x
____ +1/6=2x
3
Find an orthogonal basis of the subspace of R^3 defined by the equation
x + 2y -z =0 and an orthogonal vector to this subspace.