Posted by **Tati** on Sunday, March 18, 2012 at 6:11pm.

Convert from polar to rectangular r=3cos2theta

- pre-calculus -
**bobpursley**, Sunday, March 18, 2012 at 6:25pm
x= r cosTheta=3cos(2Theta)cosTheta

y= r sin Theta=3cos(2Theta)sinTheta

- pre-calculus -
**Bosnian**, Sunday, March 18, 2012 at 6:26pm
In google type :

r=3cos2theta

When you see list of results click on :

Advanced Math: precal, trig identities, conversion

You will see answer.

- pre-calculus -
**Tati**, Sunday, March 18, 2012 at 6:36pm
Identities r everywhere!!! :/, thank you 4 the info appreciated

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