Question

What is the distance between `(12 , (-3 pi)/4 )` and `(-1 , pi )`?

Answer 1

`s~=11,31`

Explanation:

`x_1=12*cos(-3pi/4)" "x_1=8,485`
`y_1=12 *sin (-3pi/4)" "y_1=-8,485`
`x_2=-1*cos pi=1`
`y_2=-1*sin pi=0`
`s=sqrt((7,485)^2+(-8,485)^2)`
`s=sqrt(56,025225+71,995225)`
`s=sqrt (128,02045)`
`s~=11,31`