Question

Evaluate cot -220 degrees

Answer 1

\[\cot(x) = \frac{ \cos(x) }{ \sin(x) }\]

so can you find the values for cos(-220) and sin(-220) and find the exact value.

Answer 2

how do you find those values?

Answer 3

Do this on your calculator.\[\cos ^{-1}(-220) \]

and \[\sin^{-1}(-220)\]

Answer 4

i don't have a scientific calculator

Answer 5

Use your regular one... don't really need one.... if not use the computer calculator.