<PRE><B>Question 236971</B>
the answer is - sin 25 degrees.


205 - 180 = 25 degrees in quadrant 3


in quadrant 3 the sin = opposite divided by hypotenuse.


the opposite is the vertical line parallel to the y-axis going in a downward direction so the opposite side is minus.


the hypotenuse is always positive.


opposite / hypotenuse = -/+ = -


if you use your scientific calculator, sin 205 shows up at -.422618262


- sin 25 shows up as -.422618262


they are equivalent.


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