Two Sides of a Right Triangle ABC (C Is the Right

question 79

Multiple Choice

Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given
angle. Give exact answers with rational denominators.
-Find $\cos \mathrm { A }$ when $\mathrm { a } = 3$ and $\mathrm { b } = 7$ .

• A) \(\frac { \sqrt { 58 } } { 7 }\)
• B) \(\frac { 7 \sqrt { 58 } } { 58 }\)
• C) \(\frac { 3 \sqrt { 58 } } { 58 }\)
• D) \(\frac { \sqrt { 58 } } { 3 }\)

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Cumulative Relative Frequency

A measure used in statistics to represent the sum of relative frequencies up to a certain class or level.

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