18.6 Find the exact value of trigonometric ratios
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Find the exact value of trigonometric ratios

Lessons

  • 1.
    Find the exact value of all six trigonometric ratios, then make a conclusion
    which primary trigonometric ratios (sin θ,cosθ,tanθ \theta , cos \theta, tan \theta) are positive in each
    quadrant
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Find the exact value of trigonometric ratios

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