anonymous
  • anonymous
Find the exact values of sin A and cos A. Write fractions in lowest terms.
Mathematics
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
sin A = four thirds; cos A = three fourths sin A = five fourths; cos A = five thirds sin A = four thirds; cos A = four fifths sin A = four fifths; cos A = three fifths
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anonymous
  • anonymous
@Michele_Laino please help really quick? This usually isn't hard for me but I don't understand what im doing wrong
welshfella
  • welshfella
Sin A = opposite / hypotenuse = 8/10 = 4/5 Cos A = adjacent/ hypotenuse Can you continue?

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anonymous
  • anonymous
Cos A=6/10 = 3/5 ?
Michele_Laino
  • Michele_Laino
correct! \(\cos A= 3/5\)
Michele_Laino
  • Michele_Laino
furthermore, we can write: \(8= 10 \sin A\), so we get: \[\sin A = \frac{8}{{10}} = ...?\]

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