SOLUTION: how do i calculate cot390 degrees on a calculator? i know the answer is 1.7321 but i want to know how i got that answer

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Question 316298: how do i calculate cot390 degrees on a calculator? i know the answer is 1.7321 but i want to know how i got that answer
Found 2 solutions by Fombitz, moshiz08:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
cot(390)=1/tan(390)

Answer by moshiz08(60) About Me  (Show Source):
You can put this solution on YOUR website!
Another way to do it is to remember that cot%28x%29+=+cos%28x%29%2Fsin%28x%29, so we can just compute cos%28390%29%2Fsin%28390%29 which equals 1.7321.
Make sure your calculator is in 'degrees' first. If it is in radians and you don't know how to change it, then you can convert 390 degrees to radians by multiplying by pi%2F180.