SOLUTION: 2x-cos(x)+1=0 2x-cos(x)+1=1 Solve for x

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Question 312465: 2x-cos(x)+1=0
2x-cos(x)+1=1
Solve for x
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=2x-cos%28x%29%2B1=0
I used Newton's method and found highlight%28x=0%29 as a solution which is verified graphically below.
+graph%28+300%2C+300%2C+-2%2C+2%2C+-10%2C+10%2C+2x-cos%28x%29%2B1%29+
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f%28x%29=2x-cos%28x%29%2B1=1
f%28x%29=2x-cos%28x%29=0
I solved this one by hand using an EXCEL spreadsheet.
+graph%28+300%2C+300%2C+-1%2C+2%2C+-10%2C+10%2C+2x-cos%28x%29%29+
highlight%28x=0.450199%29