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Chapter 6: Q 28. (page 381)

Find the exact value. Do not use a calculator.

sin(-3蟺)

Short Answer

Expert verified

The exact value ofsin(-3蟺)=0

Step by step solution

01

Step 1. Given information

sin(-3蟺)

02

Step 2. Unit Circle

Rotateanticlockwisetoform-3蟺anglewiththepositivex-axis.Thesin(-3蟺)equalsthey-coordinate(0)ofthepointofintersection(-1,0)ofunitcircle.

03

Step 3. Final Result

sin(-3蟺)=y-coordinate=0sin(-3蟺)=0

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