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Let f: R to R be defined by f(x) = 5^(...

Let `f: R to R` be defined by
`f(x) = 5^(2x)/(5^(2x) + 5)`, then `f(x) + f(1-x)` is equal to

A

1

B

5

C

25

D

`sqrt(5)`

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The correct Answer is:
A
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MCGROW HILL PUBLICATION-SETS, RELATIONS AND FUNCTIONS-EXERCISE (CONCEPT -BASED (SINGLE CORRECT ANSWER TYPE QUESTIONS) )
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  11. Let f: R to R be defined by f(x) = 5^(2x)/(5^(2x) + 5), then f(x) + ...

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  14. Let f(x) = ln(x-1)(x-3) and g(x) = ln(x-1) + ln(x-3) then,

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  18. The domain of f(x) = cos^(-1) {log(2) (1/2x^(2))} is

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  19. Suppose f: R to R be defined by f(x) ={{:(x, if x in Q),(1-x, if x i...

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  20. Let f:[4,infty) to [1,infty) be defined by f(x) = 11^(x(4-x)) AA x ...

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