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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