Find the Exact Values of the Indicated Trigonometric Functions $\cos B$

question 228

Multiple Choice

Find the exact values of the indicated trigonometric functions. Write fractions in lowest terms.
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Find $\cos B$ and $\cot B$ .

• A) \(\cos B = \frac { a } { c } ; \cot B = \frac { a } { b }\)
• B) \(\cos B = \frac { c } { a } ; \cot B = \frac { b } { a }\)
• C) \(\cos \mathrm { B } = \frac { \mathrm { c } } { \mathrm { b } } ; \cot \mathrm { B } = \frac { \mathrm { a } } { \mathrm { b } }\)
• D) \(\cos B = \frac { b } { c } ; \cot B = \frac { b } { a }\)

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