Verify whether the indicated numbers are zeros of the polynomials corresponding to them in the following cases:
\( f(x)=5 x-\pi, x=\frac{4}{5} \)
Given:
\( f(x)=5 x-\pi, x=\frac{4}{5} \)
To do:
We have to find whether the indicated numbers are zeros of the polynomials corresponding to them.
Solution:
To find whether $x=\frac{4}{5}$ is a zero of $f(x)$ we have to check if $f(\frac{4}{5})=0$
Therefore,
$f(\frac{4}{5})=5 \times \frac{4}{5}-\pi$
$=4-\pi$
Therefore $x=\frac{4}{5}$ is not a zero of $f(x)$.
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