anonymous
  • anonymous
2sin^2-2sin-1=0 Use the quadratic formula to find all degree solutions. Use a calculator to approximate all answers to the nearest tenth of a degree.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Sorry, I'm having major problems with this one. It is unfactorable, so... I don't know.
anonymous
  • anonymous
Wait... Quadratic formula. Got it!!!!!!!!
anonymous
  • anonymous
equation trigolometry ^2, solve sinx as x

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anonymous
  • anonymous
I did that and used the quadratic formula... I don't know where to go from (1+sqrt3)/2.
anonymous
  • anonymous
(1+sqrt3)/2 is wrong; (1-sqrt3)/2 right ; because -1 <= sinx<=1
anonymous
  • anonymous
OMG! No wonder! I typed it into my calculator and got an error! When I typed in your answer, I got an angle! Thank you!!!!
anonymous
  • anonymous
ok.
anonymous
  • anonymous
Ok... I believe I did it wrong. I got 21.5 deg as an answer and it's wrong.
anonymous
  • anonymous
yea

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