SOLUTION: How to find related angles of theta according to trigonometric ratios?
Eg: sin (0 - theta) ?
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Question 770504: How to find related angles of theta according to trigonometric ratios?
Eg: sin (0 - theta) ?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How to find related angles of theta according to trigonometric ratios?
Eg: sin (0 - theta) ?
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Using reference angle:: sin(theta) = y/r
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-theta has the same r value and the negative of the y value
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So, sin(-theta) = -y/r = -[sin(theta]
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Cheers,
Stan H.
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