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Question

If f is a continuous function on the real line. Given that x2+(f(x)2)x3.f(x)+233=0. Then the value of f(3)

A
can not be determined
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B
2(13
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C
zero
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D
2(32)3
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Solution

The correct option is A can not be determined
Given f(x) is a continuous function on the real line.

Since, 3 lies on the real line, then the given equation will hold for x=3 also.

Then we will have

(3)2+(f(3)2)33.f(3)+233
=0.

So, the given equation is an identity. Which is true for all real x.
So, f(3) can not be determined from the given equation.

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