Question

ATIVIDADE
1- O domínio das funções y = Log3 ( x - 2) e y = Log2 (x + 3) são respectivamente:
(a) D = {x € RX> 12} e = {x € R x>-3}
(b) D = {x € Rx512} e = {x € R XS-3}
(C) D = {x € Rx2/2} e = {x € R1x2-3}
(d) D = {x € Rx>/2} e = {x € R | X<-3}
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Answer 1

$y=\log_3{(x-2)}$

$x-2>0\ \to\ \boxed{x>2}$

$\boxed{\mathbb{D}=\{x\in\mathbb{R}\ |\ x>2\}}$

$y=\log_2{(x+3)}$

$x+3>0\ \to\ \boxed{x>-3}$

$\boxed{\mathbb{D}=\{x\in\mathbb{R}\ |\ x>-3\}}$