Cot theta = 0.4986 whats angle theta?
\[cos^{-1}(0.4986)=?\]
my answer choices are a. 26 degree 30' b. 60 degree 10' c. 63 degree 30' d. 64 degree 30' e. 29 degree 50'
what about sin theta= 0.0987
i think the original question is about cot not cos.
Ack...that makes sense why my answer was slightly off :P
so is it still b?
\[cot \theta=\frac{1}{tan{\theta}}=0.4986\]\[\frac{1}{0.4986}=tan \theta\]\[tan^{-1}(\frac{1}{0.4986})=63.499\] That's about 64 degrees and 30'. Sorry...had a phone call.
skfaljkhfas 63 degrees, 30 minutes. I must be tired. Answer C!
Ok, thanks. And how about sin theta= 0.0987?
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.
just typed in arcsin(.0987)=degrees and it gave me 5.664315618
typed into google chrome address bar that is.
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