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u, with, vector, on top, equals, left parenthesis, 2, comma, minus, 4, right parenthesis
Find the magnitude of u, with, vector, on top.
Enter an exact answer as an expression with a square root symbol or enter an approximate answer as a decimal rounded to the nearest hundredth.
vertical bar, vertical bar, u, with, vector, on top, vertical bar, vertical bar, equals
Do 4 problems