anonymous
  • anonymous
how would you solve sin2x=0.5?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
sin(2x)=.5 2x=arcsin(.5) x = arcsin(.5)/2
anonymous
  • anonymous
No but without a calculator?
anonymous
  • anonymous
That is without a calculator.

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anonymous
  • anonymous
but how would you find the arcsin of .5/2?
anonymous
  • anonymous
the actual number... i would use newton approximation
anonymous
  • anonymous
lol. im only in precal -_- sorry i dont know about that
amistre64
  • amistre64
sin(30) = 1/2 30 = 2x x = 60
amistre64
  • amistre64
x also = 120
amistre64
  • amistre64
....make that 15 lol
amistre64
  • amistre64
and 180-15
anonymous
  • anonymous
sin(x)=1/2 x = pi/6 sin(2x)=.5 x = pi/3
anonymous
  • anonymous
pi/12, sorry
anonymous
  • anonymous
wait wait wait hold on. Wouldnt x=15. Since sin of 30=.5? And sin of 2(15)=.5?
anonymous
  • anonymous
In degrees it would be 15, in radians, pi/12
anonymous
  • anonymous
ahhhhhh. oh ok. See now i know what im doing. bcuz at first i didnt even understand what the problem was asking me to find out.
anonymous
  • anonymous
Thank you thank you. :)

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