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Use a graphing calculator to solve the equation 3 cos t = 1 in the interval from 0 to 2p. Round to the nearest hundredth.
 one year ago
 one year ago
Use a graphing calculator to solve the equation 3 cos t = 1 in the interval from 0 to 2p. Round to the nearest hundredth.
 one year ago
 one year ago

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gjhfdfgBest ResponseYou've already chosen the best response.0
I typed it in on my calculator but did not do a thingg!
 one year ago

swissgirlBest ResponseYou've already chosen the best response.1
\(\cos(t)=\large{1 \over 3} \) \(\cos^{1}(\large{1 \over 3} )=t\)
 one year ago

swissgirlBest ResponseYou've already chosen the best response.1
First I divided 3 from both sides
 one year ago

swissgirlBest ResponseYou've already chosen the best response.1
\(3\cos(t)=1\) \(\large {3\cos(t) \over 3}={1 \over 3}\) \(\cos(t)=\large{1 \over 3}\) \(\cos^{1}(\cos(t))=Cos^{1}(\large{1 \over 3})\) \(t=Cos^{1}(\large{1 \over 3})\)
 one year ago

gjhfdfgBest ResponseYou've already chosen the best response.0
How would you put this in a decimal form.?
 one year ago

swissgirlBest ResponseYou've already chosen the best response.1
lol you gotta put this into your calc first and then your answer will be a decimal
 one year ago

gjhfdfgBest ResponseYou've already chosen the best response.0
Oh wow that was dumb of me lol. I was thinking this had to be put in a decimal form.! before solving it
 one year ago

swissgirlBest ResponseYou've already chosen the best response.1
Are you supossed to be working in radians or degrees?
 one year ago

gjhfdfgBest ResponseYou've already chosen the best response.0
Ah, I had my calc set in degrees, I'm pretty sure I'm suppose to be using radians.! Gah I keep forgetting to change the mode
 one year ago

swissgirlBest ResponseYou've already chosen the best response.1
YUP THAT IS WHAT I GOT :)
 one year ago

gjhfdfgBest ResponseYou've already chosen the best response.0
Thanks for the help.! (:
 one year ago
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