ElyssaC
  • ElyssaC
PLEASE HELP!!! Find all solutions: 3cos[(pi/5)x]=2 Please help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
I'm sorry I don't understand this :/ I will google it and assist you upon your search! :)
ElyssaC
  • ElyssaC
The answers apparently are: 0.1339+10k and 8.6614+10k where k is an integer. The problem is, I don't know how to SOLVE to get the answers. They give us a select few answers, but I still need to know the process of how to get there, if that makes sense.
anonymous
  • anonymous
Alright I think I know the answer to your problem... Maybe Try this https://www.khanacademy.org/math/differential-calculus/limits_topic/algebraic-limits/v/limit-example-1 If this doesn't help I'll try to find more links to help you out :)

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anonymous
  • anonymous
Try this one love I think it fits more along the lines of what we're doing here. :3 https://www.youtube.com/watch?v=tqXQKTTlRWE
ElyssaC
  • ElyssaC
Okay, I'll look at it and see if it's what I need. Thanks!
anonymous
  • anonymous
Welcome Sorry I'm not that great at explaining or helping I try!
baru
  • baru
\(cos(\frac{\pi x}{5})=3/2\\cos^{-1}(3/2)= \frac{\pi x}{5} +2k\pi\)
baru
  • baru
sorry,typo , all 3/2 should be 2/3

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