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20-04-2021
Mathematics

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simplify - root (9+y)^2 if y <-10

Respuesta :

20-04-2021

Answer:

− √ ( 9 + y ) 2 > 1

Explanation:

− √ ( 9 + y ) 2 , where y < − 10

Simplify the expression,

− √ ( 9 + y ) 2 = − ( 9 + y ) = − 9 − y

When y < − 10 , − y > 10

Subtract 9 from both sides,

− 9 − y > 1 Hence,

− √ ( 9 + y ) 2 > 1

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