SOLUTION: how do i solve cos(x/7)= 7x

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Question 380240: how do i solve cos(x/7)= 7x
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
graph%28300%2C300%2C-2%2C2%2C-2%2C2%2C0%2Ccos%28x%2F7%29%2C7x%29
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I used Newton's method with,
f=cos%28x%2F7%29-7x
df%2Fdx=-%281%2F7%29sin%28x%2F7%29-7
x%5B1%5D=0
to obtain an answer of highlight%28x=0.142827%29