Question

What are the cylindrical coordinates of the point whose spherical coordinates are (4, -4, pi/6)

Answer 1

cyl is what; radius rotate and up?

Answer 2

up = radius sin(pi/6) if im reading this right

Answer 3

gonna have to read up on it ro refresh :)

Answer 4

what is -4?is it in radians?

Answer 5

http://tutorial.math.lamar.edu/Classes/CalcIII/SphericalCoords.aspx

Answer 6

sph (radius, theta, phi) where theta is from the x axis and phi from the z?

Answer 7

yes, but cant figure out the -4

Answer 8

from (p,t,f) to (r,t,z), this is for my own recollection, lets see if we can get to the -4 :)

r = p cos(f)
t = t
z = p cos(f)

so the -4 is just -4 in both cases

Answer 9

your not asked to analyse -4, your simply told to put this into cyl coords; so -4 gets transfered as is

Answer 10

i couldnt plot it, tried to see where it is

Answer 11

coudn't figure it out

Answer 12

and yes, all angles are radian measures at this point unless they specifically tell you otherwise

Answer 13

\[-\frac{4}{pi}\ pi\ radians\]

Answer 14

thank you for help!

Answer 15

yw