find-tbe-domain-and-range-of-the-following-functions-y-4x-x-2-4-

Question Number 170461 by khadee last updated on 24/May/22

f i n d t b e d o m a i n a n d r a n g e o f t h e f o l l o w i n g f u n c t i o n s

y = 4 x / x^{2} - 4

Commented by mokys last updated on 24/May/22

x^{2} - 4 = 0 \Rightarrow x = \pm 2

D f = R - {\pm 2}

Answered by MathsFan last updated on 24/May/22

x^{2} - 4 = 0

x^{2} = 4

x = \pm 2

d o m a i n = {x ∣ x \in R, e x c e p t x = \pm 2}

Facebook Tweet Pin