SOLUTION: The expression cot(-200) degrees is equivalent to 1) -tan 20 degrees 2) tan 70 degrees 3) -cot 20 degrees 4)cot 70 degrees

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Question 603891: The expression cot(-200) degrees is equivalent to
1) -tan 20 degrees 2) tan 70 degrees 3) -cot 20 degrees 4)cot 70 degrees
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
The expression cot(-200) degrees is equivalent to
1) -tan 20 degrees 2) tan 70 degrees 3) -cot 20 degrees 4)cot 70 degrees
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Cot (-200º) makes a reference angle of 20º in quadrant II where cot<0
So Cot (-200º)=-cot 20º