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Trigonometry

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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
Practice
Solve triangles using the law of sinesGet 3 of 4 questions to level up!
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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
Practice
Solve triangles using the law of cosinesGet 3 of 4 questions to level up!
Learn
Trig word problem: starsLaws of sines and cosines review
Practice
General triangle word problemsGet 3 of 4 questions to level up!
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Unit circleThe trig functions & right triangle trig ratiosTrig unit circle review
Practice
Unit circleGet 3 of 4 questions to level up!
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Intro to radiansRadians & degreesDegrees to radiansRadians to degreesRadian angles & quadrants
Practice
Radians & degreesGet 3 of 4 questions to level up!
Unit circle (with radians)Get 3 of 4 questions to level up!
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Proof of the Pythagorean trig identityUsing the Pythagorean trig identityPythagorean identity review
Practice
Use the Pythagorean identityGet 3 of 4 questions to level up!
Learn
Trig values of special angles
Practice
Trig values of special anglesGet 3 of 4 questions to level up!
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Graph of y=sin(x)Intersection points of y=sin(x) and y=cos(x)Graph of y=tan(x)
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Features of sinusoidal functionsMidline, amplitude, and period review
Practice
Period of sinusoidal functions from graphGet 3 of 4 questions to level up!
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Amplitude & period of sinusoidal functions from equationTransforming sinusoidal graphs: vertical stretch & horizontal reflectionTransforming sinusoidal graphs: vertical & horizontal stretches
Practice
Learn
Sinusoidal function from graph
Practice
Graph sinusoidal functionsGet 3 of 4 questions to level up!
Construct sinusoidal functionsGet 3 of 4 questions to level up!
Graph sinusoidal functions: phase shiftGet 3 of 4 questions to level up!
Learn
Trig word problem: modeling daily temperatureTrig word problem: modeling annual temperatureTrig word problem: length of day (phase shift)
Practice
Modeling with sinusoidal functionsGet 3 of 4 questions to level up!

About this unit

In Mathematics II, students learned about the trigonometric ratios sine, cosine, and tangent. In this unit, we extend these ideas into functions that are defined for all real numbers! We learn about the behavior of those functions and use them to model real-world situations.