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Quick help with answers please!!
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3 votes
Quick help with answers please!!

Quick help with answers please!!-example-1
User Richard Huang
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1 Answer

6 votes

Answer:

x=pi/8 and 7pi/8

Explanation:

2cos(2x)=sqrt(2), cos(2x)=1/sqrt(2). 2x=pi/4 and 7pi/4, x=pi/8 and 7pi/8

User Abhit
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