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Maths Puzzle
Numerical Ability
Find a basis for the subspace R^4 consisting of all vactors of the form (a + b, b+c, a-b-2c, b + c), what is the dimesion of the subspace?
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book Other Question
Mr. Merrill has 3 times as many nickels as dimes. The coins have a total value of $1.50. How many of each coin does he have? __nickels __dimes
must define varible and show w
{x^2-3}=2x