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Questions › JNU › JNU SSS 2011 › Q6
1 mark, −0.25Mathematics › Sets, relations and functions › Functions: domain, range and compositionEasyabout 1 min

JNU SSS 2011 Question 6: Sets, relations and functions

The domain of the function f(x)=5x+7f(x) = \frac{5}{\sqrt{x + 7}}f(x)=x+7​5​ is

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The domain of the function f(x) = 5/(√(x + 7)) is (A) (-7, ∞) (B) [-7, ∞) (C) (-∞, ∞) (D) (-∞, -7) ∪ (-7, ∞)

Also written as: The domain of the function f(x) = 5/(sqrt(x + 7)) is

Sets, relations and functions has come up 65 times in 6 exams since 2004.

What this question tests

This question is on Functions: domain, range and composition, part of Sets, relations and functions in Mathematics.

What makes a rule a function, its domain and range, composition and graph transformations.

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