Main content

# Trigonometry

Learn

Intro to arcsineIntro to arctangentIntro to arccosineRestricting domains of functions to make them invertibleDomain & range of inverse tangent functionUsing inverse trig functions with a calculatorInverse trigonometric functions review

Practice

Evaluate inverse trig functionsGet 3 of 4 questions to level up!

Learn

Solving sinusoidal equations of the form sin(x)=dSolving cos(θ)=1 and cos(θ)=-1

Practice

Solve sinusoidal equations (basic)Get 3 of 4 questions to level up!

Solve sinusoidal equationsGet 3 of 4 questions to level up!

Learn

Trig word problem: solving for temperatureTrigonometric equations review

Practice

Sinusoidal models word problemsGet 3 of 4 questions to level up!

Learn

Sine & cosine identities: symmetryTangent identities: symmetrySine & cosine identities: periodicityTangent identities: periodicity

Learn

Review of trig angle addition identitiesUsing the cosine angle addition identityUsing the cosine double-angle identityProof of the sine angle addition identityProof of the cosine angle addition identity

Practice

Using the trig angle addition identitiesGet 3 of 4 questions to level up!

Learn

Finding trig values using angle addition identitiesUsing trig angle addition identities: finding side lengthsUsing trig angle addition identities: manipulating expressionsUsing trigonometric identitiesTrig identity reference

Practice

Find trig values using angle addition identitiesGet 3 of 4 questions to level up!