AnswersS1S-OC Pre-Calculus B E3710 - AGPerformance Task: Trigonometric Identities

Performance Task: Trigonometric Identities Answers

4 verified answers
1
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How can the vector in the graph be described?

A
The magnitude is , and the direction angle is about 34°.
B
The magnitude is , and the direction angle is about 146°.
C
The magnitude is , and direction angle is about 34°.
D
The magnitude is , and the direction angle is about 146°.
2
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The magnitude of is .

A
3
B
4
C
5
3

To the nearest degree, the direction angle of is .

A
37º
B
53º
C
127º
4

If is multiplied by the scalar –10, the new vector will be the original vector.

A
in the same direction but longer than
B
in the opposite direction but longer than
C
in the same direction but shorter than

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