What does 1/√x ∈ R mean? | Student Matrix
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What does 1/√x ∈ R mean?

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What does 1/√x ∈ R mean?

Ammo

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Oct 22, 2021
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I am solving a Math question where it says that dom(f ◦ g) = dom g ∩ {x | g(x) ∈ dom f}, with g(x) = 1/√x, and dom f = R and dom g = x>0. Any answer will be appreciated
 

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