- #1

- 564

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## Homework Statement

what is the magnitude of the vector:

v = 3i - 4j - k

## Homework Equations

## The Attempt at a Solution

what I have is:

sqrt(3^2 + (-4)^2 + (-1)^2)

is this correct?

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- Thread starter -EquinoX-
- Start date

- #1

- 564

- 1

what is the magnitude of the vector:

v = 3i - 4j - k

what I have is:

sqrt(3^2 + (-4)^2 + (-1)^2)

is this correct?

- #2

Mark44

Mentor

- 35,008

- 6,758

It's correct, but should be simplified. Carry out the operations in the outer parentheses so that your answer is the square root of a single number.

- #3

- 564

- 1

hmm..the question asks for an exact answer... so should it just be sqrt(26)

- #4

Mark44

Mentor

- 35,008

- 6,758

That ***is*** the exact answer.

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