Question

How to solve COT(-45*)

Answer 1

check your previouse post , i already solved this

Answer 2

you have not explained "how"

Answer 3

yes i did check again

Answer 4

sorry for not checking the notifications ;P. but just one question there, um i get the part where you did cos(-45)/sin(-45). how did 1/root(2) change to 1 then -1?

Answer 5

well, you gotta learn that there are certain known values of trangles.Let me show you

Answer 6

these are based on the unit circle

Answer 7

now just keep in mind that for the 45 degree triangle, we can rationlize the numberator and get 1/sqrt2

Answer 8

yup got that

Answer 9

and so do I just flip??

Answer 10

oh some other helped to get me to the answer! :) thank you. great really you even drew me a picture lol