- #1
inter060708
- 24
- 0
Homework Statement
[itex]\int_{1}^{5}\sqrt{4-(x-3)^2}dx[/itex]
Homework Equations
The Attempt at a Solution
Not really a homework. Just curious.
Let [itex]x-3=2sin u[/itex]
[itex]x=2sin u+3[/itex]
Now limit change,
when x=1, u = arcsin (-1)
when x=5, u = arcsin (1)
Since there are infinitely many solution of arcsin (-1) and arcsin (1), How do we know which ones to choose?
Thank you very much
Last edited: