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Asked by sarah

Express each value as a trigonomic function of an angle in quadrant I: Cot(-660)
15 years ago

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Answered by Reiny
adding 720º to our angle would give us a coterminal angle.
-660 + 720 = 60
so cot(-660) = <b>cot 60</b>
= 1/tan60
= 1/(√3/1) = 1/√3
15 years ago
Answered by Jerry
Use the given information to determine the exact trigonometric value of csc(theta) if cot(theta)=-8 and 3pi/2 < theta < 2pi
9 years ago

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