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Fundamental Trigonometric Identities
These are your basic building blocks for solving trigonometric equations and understanding how the pieces fit together. Using these identities can make sense of even the scariest looking trig.
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Concept Quizzes
Which of the following is equal to
\[ \frac{ \sin \theta } { \cos \theta} ? \]
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by Brilliant Staff
If \(\displaystyle \sin \theta=\frac{15}{17},\) what is the value of \[\cos \theta \times \tan \theta ?\]
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Which of the following is equal to
\[ \frac{ \cot \theta } { \cos \theta} ? \]
Excel in math and science
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If \(\cot \theta=\frac{24}{19},\) what is the value of \[\frac{\sec \theta}{\csc \theta} ?\]
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If \(\displaystyle \tan \theta=\frac{20}{19},\) what is the value of \[\frac{\cos \theta}{\sin \theta}?\]
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by Brilliant Staff