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Give the reference angle (in radians) for the angle -3pi/5 radians

Give the reference angle (in radians) for the angle -3pi/5 radians

Math   Precalculus   
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Answer #1

SOLUTION;

THE angle

  

This negative singh convert to positive sign

Then the angle is

Their is 252 degree is 3rd quadrant so the reference angle for 3rd quadrant is

Then the reference angle is

   radian

So reference angle is

ANSWER =

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