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yawa3891 [41]
3 years ago
11

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

Mathematics
1 answer:
Vladimir [108]3 years ago
8 0

Answer:

X=20

Step-by-step explanation:

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

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

X+20=90-2x-10

3x=60

X=20

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