Use Newton's method to approximate a root of the equation
cos
(
x
2
2
)
=
x
4.5
\displaystyle {\cos{{\left(\frac{{x}^{{2}}}{{2}}\right)}}}=\frac{{x}}{{4.5}}
cos
(
2
x
2
)
=
4.5
x
as follows.
Enter your root with at least 5 decimal places.
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Enter DNE for Does Not Exist, oo for Infinity
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