ericalexington ericalexington
  • 25-07-2018
  • Mathematics
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Sines/ Cosines topic. In the triangle below round to the nearest tenth. Include explanation if possinle

Sines Cosines topic In the triangle below round to the nearest tenth Include explanation if possinle class=

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LammettHash
LammettHash LammettHash
  • 25-07-2018

By the law of sines,

[tex]\dfrac{\sin90^\circ}{17}=\dfrac{\sin y^\circ}9[/tex]

[tex]\implies\sin y^\circ=\dfrac9{17}[/tex]

(since [tex]\sin90^\circ=1[/tex])

[tex]\implies y=\sin^{-1}\left(\dfrac9{17}\right)\approx32.0[/tex]

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