Explanation Formula used: The distance between the given points ( r 1 , θ 1 ) and ( r 2 , θ 2 ) is d = r 1 2 + r 2 2 − 2 r 1 r 2 cos ( θ 1 − θ 2 ) . Calculation: The given points are ( 3 , π 6 ) and ( 6 , − π 3 ) . Substitute ( r 1 , θ 1 ) = ( 3 , π 6 ) and ( r 2 , θ 2 ) = ( 6 , − π 3 ) in d

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Chapter 21, Problem 79RE

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The distance between the points (3,π6) and (6,−π3) by using the law of cosines.

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Chapter 21, Problem 78RE

Chapter 21, Problem 80RE

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Chapter 21 Solutions

Pearson eText for Basic Technical Mathematics with Calculus -- Instant Access (Pearson+)

Ch. 21.1 - Find the distance between (−2, 6) and (5, −3). Ch. 21.1 - Prob. 2PE Ch. 21.1 - Prob. 1E Ch. 21.1 - Prob. 2E Ch. 21.1 - Prob. 5E Ch. 21.1 - In Exercises 5–14, find the distance between the...Ch. 21.1 - Prob. 7E Ch. 21.1 - Prob. 8E Ch. 21.1 - Prob. 9E Ch. 21.1 - Prob. 10E

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The distance between the points ( 3 , π 6 ) and ( 6 , − π 3 ) by using the law of cosines.

The distance between the points (3,π6) and (6,−π3) by using the law of cosines.

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Chapter 21 Solutions