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Find the range of \[\sqrt{f(x)-g(x)} - \sqrt{f(x)+g(x)}\]

Such that range of \(f(x)\) is \((a,b)\) for all \(x \in R\)

And range of \(g(x)\) is \((c,d)\) \(x \in R\)

Where \[ a,c \in R^{-} \space and \space b,d \in R^{+}\]

\(f(x)\) and \(g(x)\) are continous and both are increasing functions.

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## Comments

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TopNewestDoes it matter whether \(f(x)\) and \(g(x)\) are continous?

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This question is too vague. We cannot proceed further without some information about the functions given . please try to expkain further.

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What would be further necessary information.

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We do not know anything about the fuctions. First of all we dont know whether they are continuous. Secondly, we dont know what values they take. For example assume f() takes some value in its range for some x, we dont know the respective value of g() for that x.. It may even be possible for the given expression to become undefined. But we cant say anything since we dont know f and g. If f and g are given, then it is possible.. Otherwise, i dont think we can do it.

We may be able to devise a set method or tactics to solve problems like this when f and g are given. We may be able to find a weak range.. Nothing more.

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Don't you think your question is too vague??

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Yep, i got that now. It was just crazy curiosity

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