Domain of f(x) is [-1,5] and domain of g(x) is [1,4], The domain of f(x).g(x) will be

[-1, 5]

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[1, 4]

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[-1, 1]

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[4, 5]

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Solution

The correct option is B
[1, 4]

Domain of f (x).g(x) is A $\cap$ B,

where A is the domain of f (x) and B is the domain of g (x).
$\Rightarrow$ Domain of f (x).g(x)

= [-1, 5] $\cap$ [1, 4]

= [1,4]

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