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Question
The graph of a polynomial f(x) is as shown in Fig. 2.21. Write the number of real zeros of f(x).
Solution
The graph of a polynomial `F(x)` touches x−axis at two points
We know that if a curve touches the x-axis at two points then it has two common zeros of `f(x)`.
Hence the number of zeros of `f (x )`, in this case is 2.
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