Vectors abs sum diff
The vectors a = (4,2), b = (- 2,1) are given.
Calculate: a) |a+b|, b) |a|+|b|, c) |a-b|, d) |a|-|b|.
Calculate: a) |a+b|, b) |a|+|b|, c) |a-b|, d) |a|-|b|.
Correct answer:

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