Posted by meme on Sunday, February 19, 2012 at 11:53am.
convert each point,P(x,y)to the ordered pair P(r cos theta ,r sin theta).round all valuas of r to one dicimal place and all values of theta to the nearste degree.
(a) (4,6)
(b) (3.7)
(c) (10,23)

math  Reiny, Sunday, February 19, 2012 at 12:04pm
I will do a), you do the rest
for (4,6), r^2= 4^2+ 6^2 = 52
r= √52
tanØ= 6/4
Ø = appr 56.3°
so (4,6) > (√52cos56.3 , √52sin56.3)
= appr (7.2cos56° , 7.2sin56°)

math  meme, Sunday, February 19, 2012 at 12:09pm
AR U SURE ?

math  Reiny, Sunday, February 19, 2012 at 1:49pm
Did you want the ordered pair (4,6) expressed in polar form?
I was wondering why you asked for the form
(rcosØ, rsinØ) since that is simply the equivalent of (x,y)
e.g. my answer of (7.2cos56 , 7.2sin56) = (4.026 , 5.969) or (4,6)
if you want it in the polar form (r, Ø)
then (4,6) > (7.2 , 56°)
however, that is not what you had asked for.
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