Expert: Sherman D. - 2/22/2004

Question
Hi, can you help me how to do these problems. I appreciate your help.
Find each angle, one positive and one negative, that are coterminal with each given angle.
A.   –200
B.   5(pie)/ 6
C.   142 degrees 10'
D.   313.2 degrees.


Answer
Since it has been awhile since i have done this, you will have to check to make sure that i am correct. I may have the signs backwards, so you will have to check.

a + 360 = b
a - 360 = c

A.)  
-200 + 360 = 160°
-200 - 360 = -560°

B.)
(5pi)/6 = 150°
150 - 360 = -210°
150 + 360 = 510°

C.) Sorry i don't have my scientific calculator that i use to have, because if i did have it, then i could do this, but hopefully you will be able to do it without me.


D.)
313.2 + 360 = 673.2°
313.2 - 360 = -46.8°

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