JEE MATHEMATICS MCQ: MAXIMA & MINIMA

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Application +4 | -1

The real number

x

when added to its inverse gives the minimum value of the sum at

x

equals to

View answer and explanation

Correct option: B

Option B (1) is correct because the function

x + \frac{1}{x}

has a minimum value at

x = 1

, as determined by finding the critical points and using the second derivative test.

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m(b)

f(x)

b

m(b)

f: R \rightarrow R

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x<0

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p

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