anaiahbrown anaiahbrown
  • 06-10-2018
  • Mathematics
contestada

there is a photo attached

drop down:
45
135
210
240

there is a photo attached drop down 45 135 210 240 class=

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sqdancefan
sqdancefan sqdancefan
  • 07-10-2018

Taking the arcsin of both sides of the equation, you get ...

... 90° -x = {-60°, -120°}

So ...

... x = 90° -{-60°, -120°} = {150°, 210°}

The appropriate choice is ...

... 210

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