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Math
Algebra 2
Trigonometric Functions
Unit Circle in Trigonometry
Ratios with the Unit Circle
Using Unit Circle to Find Sine, Cosine, and Tangent

Practice problem

Using Unit Circle to Find Sine, Cosine, and Tangent

By PPrecalculus: An Investigation of Functions

Find $\cos(A)$ .

Choose one answer

Option A: A

$\frac{5\sqrt{29}}{29}$

Option B: B

$\frac{4\sqrt{29}}{29}$

Option C: C

$\frac{3\sqrt{29}}{29}$

Option D: D

$\frac{2\sqrt{29}}{29}$

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