39.6k views
2 votes
Find the domain of the function algebraically q(r)=3square root r^2 -16

User DonRumatta
by
7.9k points

1 Answer

0 votes
hello :
q(r)=3√(r²-16)
q exist : r² - 16 ≥ 0
≥ 16
√r² ≥ √16
but : √16 = 4 and √r² = |r |
|r | ≥ 4
r ≤ 4 or r ≥ 4
the domain is : ] -∞, 4] ∪ [,4 , + ∞ [
User Trell
by
8.0k points

Related questions

asked Jun 19, 2024 172k views
Shantanoo asked Jun 19, 2024
by Shantanoo
8.2k points
1 answer
5 votes
172k views
asked May 5, 2024 57.6k views
Cartalot asked May 5, 2024
by Cartalot
7.8k points
1 answer
1 vote
57.6k views