Greenrune113 Greenrune113
  • 19-04-2018
  • Mathematics
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Q6 Q19.) Write the expression as the​ sine, cosine, or tangent of an angle. Then find the exact value of the expression.

Q6 Q19 Write the expression as the sine cosine or tangent of an angle Then find the exact value of the expression class=

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Asdfjkadfjkakjf Asdfjkadfjkakjf
  • 19-04-2018
using sin(A+B) = sinAcosB + cosAsinB

sin20cos40 + cos20sin40 = sin(20+40) = sin60degree

= [tex] \frac{ \sqrt{3}}{ 2} [/tex]
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