anonymous
  • anonymous
PreCalc & Trig Help! Picture below. I did one like this already, but for some reason I just can't figure this one out. :/
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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anonymous
  • anonymous
B
anonymous
  • anonymous
can you tell me how you found that so i know for the rest of the ones like it ?

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anonymous
  • anonymous
let x= o-->sin(o) =0 and 2x=0 ---> sin2x =0 . you can conclude that sinx = sin2x when x =0. other solutions are not right because there are some pairs not satisfy sinx =sin2x.
anonymous
  • anonymous
Okay, thank you.
anonymous
  • anonymous
for example: in A)if x =pi/2---> sin(pi,2) = 1 but sin 2(pi/2) = sinpi=0
anonymous
  • anonymous
ok, I'm glad you understand
anonymous
  • anonymous
yup thanks!

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