SOLUTION: i must rewrite this tri function using angles between 0 and 90 sin 150 degrees= sin? thank you for the help

Question 304115: i must rewrite this tri function using angles between 0 and 90
sin 150 degrees= sin? thank you for the help
Answer by dabanfield(803) (Show Source): You can put this solution on YOUR website!
A reference angle for a given angle in standard position is the positive acute angle formed by the x-axis and the terminal side of the given angle. Reference angles, by definition, always have a measure between 0 and pi/2
The reference angle for 150 (quadrant II) is 180-150 = 30. The side opposite the 30 degree angle in quadrant II is positive so sin(150) = +sin(30)
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