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Mathematics 15 Online
OpenStudy (anonymous):

plot each of the following on the polar coordinate plane

OpenStudy (ipwnbunnies):

|dw:1396115701979:dw| This is a polar coordinate plane.

OpenStudy (anonymous):

OpenStudy (anonymous):

@ganeshie8 how would we solve this problem

OpenStudy (ipwnbunnies):

I'm not downloading a document, sorry.

OpenStudy (anonymous):

@ikram002p i need help with this problem, i do not understand how to plot it

ganeshie8 (ganeshie8):

first coordinate refers to the radius of circle from the center second coordinate refers to the angle

OpenStudy (ikram002p):

ill give u this exampl lets this be polar cordinate sectors express theta and sectors express r for the cordinate ( r , theta ) |dw:1396116207805:dw|

OpenStudy (ikram002p):

if u wanna plote ( 1, pi/4 ) for example r= 1 theta =pi /4

OpenStudy (anonymous):

so r=1 would be on the first circle, and 3pi/4 would e where

OpenStudy (ikram002p):

|dw:1396116423058:dw|

OpenStudy (ikram002p):

yeah u right

OpenStudy (ikram002p):

all the rest are the same ( i hope im right in this ) if u still confuse in this plz ask somone else couse i gtg :D

OpenStudy (anonymous):

@ganehsie8, if i need to plot like (2,3pi) which way would i plot it

OpenStudy (anonymous):

and (2,-pi/4)

OpenStudy (ipwnbunnies):

Do you know what 3pi is equivalent to?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

how can i know which coordinate is equivalent to what

OpenStudy (ipwnbunnies):

Since 3pi is over 2pi, 3pi - 2pi = pi. 3pi is the same as the pi position on the plane. And the 2 signifies two units away from the origin. How would that look like then?

OpenStudy (anonymous):

would it go to the right then

OpenStudy (anonymous):

or the left

OpenStudy (ipwnbunnies):

No, that's the 0 or 2pi angle.

OpenStudy (ipwnbunnies):

What do you think? Don't you know the polar coordinate plane, I gave it to you above.

OpenStudy (anonymous):

it would be like this|dw:1396117161610:dw|

OpenStudy (anonymous):

@iPwnBunnies

OpenStudy (anonymous):

@ganeshie8

OpenStudy (ipwnbunnies):

Yes, (2, 3pi) will be 2 units to the left of the polar plane.

OpenStudy (anonymous):

@iPwnBunnies what about (2,-pi/4)

OpenStudy (anonymous):

i know about 2, but what about -pi/4

OpenStudy (ipwnbunnies):

It's similar to what ikram drew. -pi/4 means pi/4 radians in the clockwise direction, which is opposite the direction we usually go.

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