Question

Find the magnitude of u using the dot product. Write the result in radical form or decimal form, rounded to the nearest hundredth.u = (-2,-5)

Answer 1

|u| = √29

Explanations:

Since we are only given one vector, we cannot compute its dot product. However, the magnitude of a vector (x, y) is expressed as:

`|u|=√(x^2+y^2)`

Given the vector u = (-2, -5), the magnitude of u is expressed as:

`\begin{gathered} |u|=√((-2)^2+(-5)^2) \\ |u|=√(4+25) \\ |u|=√(29) \end{gathered}`

Hence the magnitude of the vector in radical form is √29