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If a^2x^4+b^2y^4=c^6 then the maximum va...

If `a^2x^4+b^2y^4=c^6` then the maximum value of xy is

A

`c^3/(2ab)`

B

`c^3/(sqrt(2ab))`

C

`c^3/(ab)`

D

`c^3/(sqrt(ab))`

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AAKASH SERIES-MAXIMA & MINIMA-EXERCISE-II
  1. The curve y=xe^x has

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  2. If (l,m,n) are the direction cosines of a line, find the maximum value...

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  3. If a^2x^4+b^2y^4=c^6 then the maximum value of xy is

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  4. Maximum value of x/((x+a)(x+b)) occurs when x=

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  5. The maximum value of 4sin^2x+3cos^2x+sinx/2+cosx/2 is

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  6. The point on the curve y=x/(1+x^2) where the tangent to the curve has ...

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  7. The least value of (sin^(-1)x)^3+(cos^(-1)x)^3 is

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  8. If A gt 0, b gt 0 and A+B =pi//3, then the maximum value of tan A tan ...

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  9. Let f(x) = (1+b^(2))x^(2) + 2bx + 1 and let m (b) be the minimum value...

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  10. If f(x) = a log |x| + bx^(2) + x has extreme values at x = -1 and x = ...

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  11. The condition that f(x) =ax^3+bx^2+cx+d has no extreme value is

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  12. The minimum value of x^(logx) is

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  13. Maximum value of f(x)=(2+x)^(1//3)(1-x)^(2//3) is

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  14. If f^1(x)=(x-a)^8(x-b)^(11) then

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  15. Let f(x) =a0+a1x^2+a2x^4+…….+anx^(2n) be a polynomial in x in R with 0...

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  16. The function f(x)=4x^5-25x^4+40x^3-10 has

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  17. The function x (x-1) (x-2) attains its maximum value when x is

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  18. If x+y = 6543298 and x^(11)y^5 is maximum then the ratio of the number...

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  19. If xgt0,ygt0,x+y=3 and xy is maximum then the maximum value of xy is

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  20. A line segment of length 8cm is divided into two parts AP and PB by a ...

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