180k views
3 votes
Cos 2x - cos x = 0

Soln set on [0,2π)_
Soln set on R:

User Alex Link
by
8.1k points

1 Answer

3 votes

Explanation:

if a hospital has 250 patients and 15% of them have HIV, how many patiences are positive?

User Balkyto
by
8.5k points