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If ab gt 0, then the minimum value of (a...

If `ab gt 0`, then the minimum value of `(a+b)((1)/(a)+(1)/(b))` is

A

`lt 1`

B

`gt 4`

C

`lt 7`

D

can't say

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • If ab=25 , then the minimum value of a+b is :

    A
    10
    B
    8
    C
    24
    D
    16

  • Let ab=1 , then the minimum value of (1)/(a^(4))+(1)/(4b^(4)) is

    A
    `1`
    B
    `2`
    C
    `1//4`
    D
    `1//2`

  • If a,b and c gt 0 , then the minimum value of a/(b+c)+b/(c+a)+c/(a+b) is

    A
    1
    B
    `3//2`
    C
    2
    D
    `5//2`