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N Characters of information are held on magnetic tape, in batches of x characters each, the batch processing time is `alpha + beta x^2 `seconds, `alpha and beta` are constants. The optical value of x for fast processing is

A

`alpha//beta`

B

`beta//alpha`

C

`sqrt(alpha//beta)`

D

`sqrt(beta//alpha)`

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The correct Answer is:
C
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OBJECTIVE RD SHARMA ENGLISH-MAXIMA AND MINIMA -Exercise
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  6. The first and second order derivatives of a function f(x) exit at all ...

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  7. The minimum value of 2^(x^2-3)^(3) +27 is 2^(27) (b) 2 (c) 1 (d) ...

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  8. Let f(x) =cosx sin2x. Then , min (f(x):-pilexlepi) is

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  9. If f(x)=sin^6x+cos^6x , then which one of the following is false

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  16. The minimum value of (1+1/(sin^nalpha))(1+1/(cos^nalpha)) is

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  17. The minimum value of (x-a)(x-b) is

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  18. The altitude of a right circular cone of minimum volume circumscired a...

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