book Maths Puzzle Numerical Ability

Suppose there is a collection of three or more two dimensional vectors. Provide an argument showing that the collection must be linearly dependent.

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book Other Question

Divide a given number into two having a given ratio. Please help me with this problem.Crammer's Linear System.
3x + 5y = 8
4x + 7z = 18
y + z = 3

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