paulo testoni wrote:

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(3+2^1/2)^x > -2 é:a)Ø  b) R_  c) R  d) R+  e) nda

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se x > 0 , temos ((3+2^1/2)^x ) > -2
se x= 0 , temos ((3+2^1/2)^x ) = 1, logo > -2
se x < 0 , temos ((3+2^1/2)^x ) > -2

Daí : R