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Sin(x+20) - cos (2X+10)
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1 vote
Sin(x+20) - cos (2X+10)

User Joel Grannas
by
4.3k points

1 Answer

5 votes

Answer:

X=20

Explanation:

Sin(x+20)=cos(2x+10)

Sin(x+20)=sin(90-(2x+10)

X+20=90-2x-10

3x=60

X=20

User StefanP
by
4.8k points
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