Find the measure of the angle tan^-1(-2.3) in radians and degrees.

Question

raffle_snaffle · Answer

Once you obtain degrees use the gen. formula to convert degrees to radians.

littlebird · Answer

What formula or method do I use to find degrees?

raffle_snaffle · Answer

Can you use a calculator?

littlebird · Answer

I could, but if there is a way to do it without one, I'd like to know.

raffle_snaffle · Answer

Idk, sorry.

anonymous · Answer

this is only a calculator exercise
you are not going to get the answer without one

littlebird · Answer

Ok, just making sure. My teacher is strict about showing your work.

anonymous · Answer

let x=arctan(-2.3)
tan(x)=-2.3
 tan(x)=-2.3 thus tan(x)+2.3=0
now you can approximate the number using newton's method, but I have some doubts about find an accurate answer....

littlebird · Answer

I probably don't have to do that, but thanks anyway. :) I've never learned about newtons method.

anonymous · Answer

don't worry, it was just a suggestion in case you did  ;)