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Magnitude and Direction Formulas in Trigonometry

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Magnitude and Direction Formulas in Trigonometry

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Questions and Answers

What is the magnitude of vector A in Example 4?

$5\sin^{-1}(6\sin(53))$

$6\sin^{-1}(6\sin(53))$ (correct)

$5\sin^{-1}(5\sin(53))$

$6\sin^{-1}(5\sin(53))$

In Example 4, what is the angle of vector A in degrees?

82.81

73.41 (correct)

124.23

What is the magnitude of vector C in Example 5?

7 (correct)

What is the angle between vectors A and B in Example 4?

$73.41$ degrees (B) Signup and view all the answers

In Example 4, what is the magnitude of the vector sum of vectors A and B?

$5\sin(53)$ (D) Signup and view all the answers

What is the magnitude of vector S1 in the text above?

$15$ (C) Signup and view all the answers

What is the angle 𝜃 from S1 in the text above?

$124.23$ degrees (A) Signup and view all the answers

What is the magnitude of vector S2 in the text above?

$15$ (A) Signup and view all the answers

In Example 4, what is B.A+B equal to?

Not provided in the text. (A) Signup and view all the answers

In Example 4, what is A.A-B equal to?

$6\sin^{-1}(6\sin(53))$ (C) Signup and view all the answers