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The maximum value of xy when x+2y=8 is...

The maximum value of xy when `x+2y=8` is

A

20

B

16

C

8

D

24

Text Solution

Verified by Experts

The correct Answer is:
C
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CHHAYA PUBLICATION-MCQ ZONE 3 -Question Paper 5
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  6. If the tangents to the graph of the function y= f(x) make angle (pi)/(...

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  7. The maximum value of xy when x+2y=8 is

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  9. The points of extrema of the function f(x)= int(0)^(x)(sin t)/(t)dt i...

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  10. The minimum value of the function f(x)= sin x + cos x is-

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  11. The perimeter of a sector is p , then the area of the sector is maxim...

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  12. The value of a ( a ge 3) for which the sum of the cubes of the roots ...

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  13. If f(x)= x^(3) + (1)/(x^(3) )(x ne 0), then its greatest value is-

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  14. The nearest point on the line 3x- 4y = 25 from the origin is

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  15. If the slope of the tangent at (x, y) to a curve passing through the p...

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