Question

Use a graph to solve the equation on the interval [−2π, 2π]

cot(x) = –1

Answer 1

\[\cot x=\frac{1}{\tan x}=-1~~\iff~~\tan x=-1\]
Does that help?

Answer 2

can you explain to me how to graph it?

Answer 3

Do you know the plot of \(\tan x\)?

Answer 4

no

Answer 5

Looks like this? http://www.wolframalpha.com/input/?i=Tan%5Bx%5D

Answer 6

grah of cot x.

Answer 7

ohh alright! i get it now. thanks!