SOLUTION: convert the following coordinates please.. polar r=15, 0=2.75 radians

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Question 70002: convert the following coordinates please..
polar r=15, 0=2.75 radians
Answer by jim_thompson5910(21685) About Me  (Show Source):
You can put this solution on YOUR website!
Using the formula for converting from polar to Cartesian coordinates (regular x and y)
x=r%2Acos%28theta%29
y=r%2Asin%28theta%29
This can be seen if you look at a unit circle.
So x=%2815%29%28cos%282.75%29%29note: check if you are in radian mode on your calculator
x=%2815%29%28-.9243%29
x=-13.86453
and
y=%2815%29%28sin%282.75%29%29
y=%2815%29%280.38166%29
y=5.72491of course both of these answers are approximate