Cot theta = 0.4986
whats angle theta?

Question

Cot theta = 0.4986
whats angle theta?

shane_b · Answer

$$cos^{-1}(0.4986)=?$$

anonymous · Answer

my answer choices are 
a. 26 degree 30'
b. 60 degree 10'
c. 63 degree 30'
d. 64 degree 30'
e. 29 degree 50'

anonymous · Answer

what about sin theta= 0.0987

matheducatormcg · Answer

i think the original question is about cot not cos.

shane_b · Answer

Ack...that makes sense why my answer was slightly off :P

anonymous · Answer

so is it still b?

shane_b · Answer

$$cot \theta=\frac{1}{tan{\theta}}=0.4986$$$$\frac{1}{0.4986}=tan \theta$$$$tan^{-1}(\frac{1}{0.4986})=63.499$$

That's about 64 degrees and 30'.  Sorry...had a phone call.

shane_b · Answer

skfaljkhfas  63 degrees, 30 minutes.  I must be tired.  Answer C!

anonymous · Answer

Ok, thanks. And how about sin theta= 0.0987?

matheducatormcg · Answer

apply inverse trigonometry.
trig functions typically get radians or degrees as inputs.  using inverse trig functions, the value that the trig function is equal to becomes your input.

i even had inverse trig functions on my last cell phone.
google chrome will usually solve problems if you enter them on the address bar.

matheducatormcg · Answer

just typed in arcsin(.0987)=degrees and it gave me 5.664315618

matheducatormcg · Answer

typed into google chrome address bar that is.