Kaylie9754 Kaylie9754
  • 04-09-2019
  • Mathematics
contestada

Find the polar​ coordinates of the following points given in Cartesian coordinates. (2√2, 2√2)

Respuesta :

joaobezerra joaobezerra
  • 04-09-2019

Answer:

r = 4,

theta = pi/4

Step-by-step explanation:

A cartesian pair (x,y) will have the following polar coordinates:

[tex]r = \sqrt(x^2 + y^2)[\tex]

theta = arctan(y/x)

So for your pair:

[tex]r =  \sqrt{(2\sqrt{2})^2 + (2\sqrt{2})^2} [\tex]

[tex]r = \sqrt{8+8} [\tex]

[tex]r = \sqrt{16} [\tex]

r = 4.

--------------------------

theta = arctan(1)

What is the angle that has tan = 1? It is pi/4. So arctan(1) = pi/4 = theta

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