Leahc246
  • Leahc246
For each angle θ, find the exact values of cos θ and sin θ. 1. 225°
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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gudden
  • gudden
do you know about the way the values of sines and cosines are repeated? I mean, the pattern.
gudden
  • gudden
@Leahc246 ?
Leahc246
  • Leahc246
I don't believe I do at the moment. I am trying to teach myself calc and this problem came up. Can the answers only be 0 or 1?

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Leahc246
  • Leahc246
@gudden
gudden
  • gudden
no... for both, sine and cosine, the values range between -1 to 1 and have your ever looked over the following formulas?
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Leahc246
  • Leahc246
I have seen those before! @gudden
gudden
  • gudden
cool.. now try to divide 225, into a multiple of 90 + something. and you'd get 180 + 45 now, apply the respective formula on any the lengthy counterpart..

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