03-10-2021
Mathematics

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For what values of x does the following expression √x-1 + √5-x make sense?

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03-10-2021

Answer:

Either x = 1 or x = 5

Step-by-step explanation:

[tex]{ \tt{ \sqrt{x - 1} + \sqrt{5 - x} }}[/tex]

for x = 1

[tex] = { \tt{ \sqrt{1 - 1} + \sqrt{5 - 1} }} \\ = { \tt{2}}[/tex]

for x = 5

[tex]{ \tt{ = \sqrt{5 - 1} + \sqrt{5 - 5} }} \\ = { \tt{2}}[/tex]

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