SOLUTION: please help me Indicate whether the problem is true or false show how you got it sin25 degrees = sin155 degrees
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Question 93988This question is from textbook
: please help me Indicate whether the problem is true or false show how you got it sin25 degrees = sin155 degrees This question is from textbook
You can put this solution on YOUR website! please help me Indicate whether the problem is true or false show how you got it sin25 degrees = sin155 degrees
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sin(25 degrees) = sin(180-25 degrees) = sin(155 degrees)
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You can see this if you know something about the unit circle.
Draw the terminal side of a 25 degree angle; the y value where the line meets the unit circle is the sine.
Draw the terminal side of a 155 degree angle; the y value whee the line meets the unit circle is the sine.
You should be able to see that they are the same y value.
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Cheers,
Stan H.
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