Question 80734
(sec x-2)(2sec x-1)=0
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2sec^2x-3secx +2=0
(2secx+1))(secx-2)=0
secx= -1/2 or secx = 2
Since sec has no value between -1 and 1 only secx=2 is a viable answer:
Therefore : secx=2 or cosx=1/2:
and x = 60 degrees or 300 degrees.
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Cheers,
Stan H.