Question

.'.'. i will give medal.'.'.

Answer 1

How to find the length of vector if its in \[\left(\begin{matrix}3 \\ 9\end{matrix}\right)\]

Answer 2

are there any choices or is it like were you have to show your work

Answer 3

no i just want to know the method

Answer 4

i think its just to square root each number

Answer 5

well i m sorry i dont know how to do it but i know someone that can help you fast.

Answer 6

ok

Answer 7

Length = sqrt(3^2 + 9^2)

Answer 8

means im right

Answer 9

but there is small confusion

Answer 10

@math&ing001

Answer 11

What your confusion ?

Answer 12

none of the guys that i know forsure are good with math are on right now sorry.

Answer 13

if the vector is \[\left(\begin{matrix}-5 \\ -5\end{matrix}\right)\] how can we do this

Answer 14

It's the same thing length = sqrt( (-5)^2 + (-5)^2 )

Answer 15

Look shell here it is the formula sqrt(a^2+b^2)


So just put the values in it.

Answer 16

ya but im not getting it if i square root -5-5 im not getting anything

Answer 17

You don't square root -5 you square root (-5)^2+(-5)^2 = 25 + 25

Answer 18

oh ok thanks

Answer 19

Welcome !

Answer 20

Sqrt [(-5)^2+(-5)^2 ]

Answer 21

So after it it will be
Sqrt 25 +25
Sqrt50