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# Trigonometry

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Special right triangles intro (part 1)Special right triangles intro (part 2)30-60-90 triangle example problemSpecial right triangles proof (part 1)Special right triangles proof (part 2)Area of a regular hexagonSpecial right triangles review

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Hypotenuse, opposite, and adjacentIntro to the trigonometric ratiosTrigonometric ratios in right trianglesTrigonometric ratios in right triangles

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Solving for a side in right triangles with trigonometrySolving for a side in right triangles with trigonometry

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Intro to inverse trig functions

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Right triangle word problemAngles of elevation and depressionRight triangle trigonometry review

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Triangle similarity & the trigonometric ratiosTrig challenge problem: verify identitiesTrig challenge problem: trig values & side ratios

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Sine & cosine of complementary anglesUsing complementary anglesTrig word problem: complementary angles

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Reciprocal trig ratiosFinding reciprocal trig ratiosUsing reciprocal trig ratiosTrigonometric ratios review

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Solving for a side with the law of sinesSolving for an angle with the law of sinesProof of the law of sines

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Solving for a side with the law of cosinesSolving for an angle with the law of cosinesProof of the law of cosines

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Trig word problem: starsLaws of sines and cosines review

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Identify your areas for growth in these lessons:

Test your understanding of

**Trigonometry**with these 9 questions.