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f(x) =x/a+a/x(agt 0) is decreasing in...

`f(x) =x/a+a/x(agt 0)` is decreasing in

A

`-alexlea`

B

`0ltxlta`

C

`-altxlta`

D

`(-a,0)uu(0,a)`

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The correct Answer is:
D
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AAKASH SERIES-MAXIMA & MINIMA-EXERCISE-I
  1. In the interval (0,pi), f(x)=sinx-x is

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  2. The greatest value of the function f(x) =sin 2x -x on [-pi//2,pi//2] ...

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  3. f(x) =x/a+a/x(agt 0) is decreasing in

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  4. In the interval (-3,3) the function f(x) =x/3+3/x,xne 0 is

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  5. The stationary value of f(x) = (log x )/x is

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  6. The function f(x)=x^(1//x) has stationary point at

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  7. The stationary points of y=sinx are

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  8. The minimum value of f(x)=2x^2+3x+1 is

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  9. f(x)=x^5-5x^4+5x^3-10 has a local maximum at x=

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  10. The maximum value of f(x)=x^3-2ax^2+a^2x(agt0) is

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  11. The minimum value of (x-alpha)(x-beta) is

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  12. If x+y=k and xgt09,ygt0 then x^2+y^2 is minimum if

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  13. If xgt0,ygt0,x+y=32 and x^6+y^6 is minimum then the numbers are

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  14. The minimum value of 7/(4sinx+3cosx-6) is

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  15. The function f(x) =xe^(-x)(x in R) attains a maxium value at x= …..

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  16. The maximum valuue of the function f(x)=Sin(x+pi/6)+Cos(x+pi/6) in the...

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  17. The maximum value of sin^3x.cos^3x is … and is obtained at x=......

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  18. The least value of 4sec^2x+25cosec^2x is .... and is obtained at x = ....

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  19. The minimum value of 27 secx + 64 cosecx for x in (0,pi/2) is ……. And...

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  20. The minimum value of 27 secx + 64 cosecx for x in (0,pi/2) is ……. And...

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