Question: please show work andor explain the answer determine the truth...
Please show work and/or explain the answer!
Determine the truth value of each of these statements if the domain of of each variable consists of all real numbers.
a) ∃x ( x^2 + 6 = 12 )
b) ∃x ( x^2 + 6 > 12 )
c) ∀x ( x^2 > x )
d) ∀x ( x^2 ≤ 0 )