. Dado el conjunto = {2; 3; {2}; ∅; {2; 3}; {∅}}, indique cuántas de las proposiciones siguientes son correctas: . {2; 3} ∈ . ∅ ∈ . {∅} ⊂ () . {2; 3} ⊂ . {∅} ⊂ . {2; 3;{3}} ∈ ()

d

step-by-step explanation:

d

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752

d. all of the above

step-by-step explanation: