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12-10-2018
Mathematics

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2cosx-1=.0068 find x in degrees

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quiescentdulcet quiescentdulcet

12-10-2018

Answer:

60 degree

Step-by-step explanation:

adding 1 both sides of equation

2cos x -1+1 = 0.0068 +1

2cosx = 0.9932

dividing by 2 both sides

cosx = 0.9932 / 2

cosx =0.4966

x= cos^-1(0.4966)

x=60 degree

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