जर फल \(f(x) =\frac{m}{x} +2nx + 1\) चा विकलज x = 2 वर शून्य होत असेल, तर m + 8n चे मूल्य काय आहे?

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  4. अपर्याप्त माहितीमुळे ठरवता येत नाही

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Option 4 : अपर्याप्त माहितीमुळे ठरवता येत नाही
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गणना:

\(\displaystyle f(x) =\frac{m}{x} +2nx + 1\)

\(\displaystyle f'(x) =\frac{-m}{x^2} +2n\)

x = 2 वर विकलज शून्य होतो, म्हणून, f'(2) = 0

\(\displaystyle f'(2) =\frac{-m}{2^2} +2n=0\)

\(\displaystyle f'(2) =\frac{{-m} +8n}{4}=0\)

m = 8n

∴ अपर्याप्त माहितीमुळे m + 8n चे मूल्य ठरवता येत नाही.

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