tuliskan daerah asal dari bilangan riil y(x)=√(4-x^2 ) (x)=x/(x+3) β(x)=x/(x+3) (x)=log (x^2)

Question

Matematika Diposting : 2017-10-08 Diupdate : 2017-10-18 adrianburhanuddin

Pertanyaan

tuliskan daerah asal dari bilangan riil
y(x)=√(4-x^2 )
(x)=x/(x+3)
β(x)=x/(x+3)
(x)=log (x^2)

Answer 1

y(x)=√(4-x^2 )
Dy =
4 - x² ≥ 0
x² ≤ 4
-2 ≤ x ≤ 2

f(x)=x/(x+3)
Df = R - {-3}

β(x)=x/(x+3)
D = R - {-3}

g(x) = log(x²)
Dg = R