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Congruence OS & real world application

Congruence OS \& real world application

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Find trigonometric ratios using reference anglesright chevron icon

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Q. Congruence OS \& real world application
  1. Identify angle with cosine −1-1: Identify the angle where the cosine value is −1-1.\newlinecos⁡(180°)=−1\cos(180°) = -1, so θ=180°\theta = 180°.

More problems from Find trigonometric ratios using reference angles

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Evaluate. Write your answer in simplified, rationalized form. Do not round.\newlinecsc⁡60∘=\csc 60^\circ = ______
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Evaluate. Write your answer in simplified, rationalized form. Do not round.\newlinecos⁡90∘=\cos 90^\circ = ____
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