1994
How do you write r=2sintheta and r=2sin2theta into polar coordinates?
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cantorset
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it is polar coordinates
cantorset
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r = 2 sin theta, theta is theta
cantorset
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maybe you mean cartesian coordinates?
1994
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it says solve the system of equations on the polar plane: then it has those two equations. And says Write your solutions as polar coordinates [hint there are 4]
cantorset
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oh
1994
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yeah ha. Do you know anyone who could help?
cantorset
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yes me, give me medal
1994
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I don't know how to?
cantorset
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i just gave you medal
1994
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but how
cantorset
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i took it away your medal
cantorset
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solve 2 sin t = 2 sin (2t)
chaguanas
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Ah, it's already in polar coordinates. (r, theta)
cantorset
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assume that r1 = r2 , where r1 = 2 sin t , and r2 = 2 sin (2t)
cantorset
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2 sin t = 2 ( 2 sin t cos t )
1994
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woah slow down haha
cantorset
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2sin t - 4sint*cost = 0
cantorset
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more medals
cantorset
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2sin t ( 1 - 2 cos t ) = 0
1994
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how is that four solutions
cantorset
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solve
cantorset
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solve
1994
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solve what?
cantorset
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2sin t = 0 or 1- cos t = 0
prettychicka45
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helppppp
cantorset
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sin t = 0 when t = 0, pi ,
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1- 2 cos t = 0 when cos t = 1/2 , when t = pi/3, 5pi/3
cantorset
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so the solutions are t = { 0, pi, pi/3, 5pi/3}
1994
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how do i show the work? what do I write for the equations and what answer goes with which one
1994
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Did you use the right equations? 2sint and 2sin2t
1994
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never mind i got it. thanks (: