1 Answer

Pars · Answer 1 · 2021-07-10T17:45:47+0000

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f(x) = √(2x - 10)

$Domain \: \: : \: 2x - 10 \geqslant 0$

Add sides 10

$Domain \: \: : \: \: 2x - 10 + 10 \geqslant 10 \\$

$Domain \: \: : \: \: 2x \geqslant 10$

Divided sides by 2

$Domain \: \: : \: \: (2)/(2)x \geqslant (10)/(2) \\$

$Domain \: \: : \: \: x \geqslant 5$

Done...

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