Geometry

Fundamental Trigonometric Identities

Ratio of Trigonometric Functions

         

Which of the following is equal to

sinθcosθ? \frac{ \sin \theta } { \cos \theta} ?

If sinθ=1517,\displaystyle \sin \theta=\frac{15}{17}, what is the value of cosθ×tanθ?\cos \theta \times \tan \theta ?

Which of the following is equal to

cotθcosθ? \frac{ \cot \theta } { \cos \theta} ?

If cotθ=2419,\cot \theta=\frac{24}{19}, what is the value of secθcscθ?\frac{\sec \theta}{\csc \theta} ?

If tanθ=2019,\displaystyle \tan \theta=\frac{20}{19}, what is the value of cosθsinθ?\frac{\cos \theta}{\sin \theta}?

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