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If ab=25, then the minimum value of a+b ...

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

A

10

B

8

C

24

D

16

Text Solution

Verified by Experts

Minimum value of (a+b) can be obtained when a=b then a+b=5+5=10 (since,ab=25 and a=b)
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QUANTUM CAT-FUNCTIONS AND GRAPHS-QUESTION BANK
  1. If a+b=20, then the maximum value of ab is :

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  2. If a+b+c=24, then the maximum value of abc is :

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

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  4. If f(x)=" min "(4x+3, x+4)" for "x in [0, 2], what is the maximum valu...

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  5. If f(x)=" max "(4x+3, 3x+6)" for "x in [-6, 10], Find the maximum valu...

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  6. What is the maximum value f(x)="min "(4-5x, x-3)" for every "x in (0, ...

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  7. The length of a rectangular plot is thrice its breadth. If the area of...

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  8. Mark (a) if function is one - one and into Mark (b) if function is o...

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  9. Mark (a) if function is one - one and into Mark (b) if function is o...

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  10. Mark (a) if function is one - one and into Mark (b) if function is o...

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  11. In how many different ways can the letters of the word SMART be arrang...

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  12. Let n(A)=3 and n(B)=5, then the number of one - one functions from A t...

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  13. Let A=R-{3},B=R-{1}, and let f: AvecB be defined by f(x)=(x-2)/(x-3) i...

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  14. The function f:NrarrN (N is the set of natural numbers defined by f(n)...

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  15. The function f : R -> R is defined by f (x) = (x-1) (x-2) (x-3) is

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  16. If the function f: R->R be such that f(x) = x-[x], where [x] denotes t...

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  17. If f(x)=x^2+2 then f^-1(x) is :

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  18. If f(x)=5^(x), then f^(-1)(x) is :

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  19. If f(x)=(x)/(x+1), then f^(-1)(x) is :

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  20. If f(x)=(x-1)/(x+1), then f^(-1)(x) is :

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