anonymous
  • anonymous
1. If cos Θ = negative 4 over 7, what are the values of sin Θ and tan Θ? 2. If cos Θ = square root 2 over 2 and 3 pi over 2 < Θ < 2π, what are the values of sin Θ and tan Θ?
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
LynFran
  • LynFran
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LynFran
  • LynFran
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LynFran
  • LynFran
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LynFran
  • LynFran
can u find what x is?
anonymous
  • anonymous
i literally have no clue how to do this I'm sorry
LynFran
  • LynFran
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LynFran
  • LynFran
whats 7 square=? whats (-4) square=?
anonymous
  • anonymous
49 and 16?
LynFran
  • LynFran
good now whats 49 - 16=?
anonymous
  • anonymous
33
LynFran
  • LynFran
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LynFran
  • LynFran
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anonymous
  • anonymous
sin Θ = ±square root 33 over 7; tan Θ = ±square root 33 over 4 is this it?
LynFran
  • LynFran
sin theta = sq.rt 33/7 and tan theta= opposite/adjacent tan theta= st.rt 33/-4
LynFran
  • LynFran
sin positive, cos negative so tan is negative
anonymous
  • anonymous
so thats right?
LynFran
  • LynFran
yep ...now the 2nd question...

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