Posted by Hannah on Tuesday, October 13, 2009 at 12:06am.
Determine two coterminal angles (one positive and one negative) for the given angle. Give your answers in radians.
a) 8pie/9 b)8pie/45
I know that you have to add 2pie but I do not know how to do that.

math  MathMate, Tuesday, October 13, 2009 at 7:34am
Coterminal angles for an angle α are angles of the form α±2kπ where k is different from zero.
For example, some coterminal angles of π/2 are:
π/2  4π = (7/2)π
π/2  2π = (3/2)π
π/2 + 2π = (3/2)π
π/2 + 4π = (7/2)π

math  oops  MathMate, Tuesday, October 13, 2009 at 7:35am
The last two should read:
π/2 + 2π = (5/2)π
π/2 + 4π = (9/2)π
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