In the below question
How from the first step they have written that $\alpha$ belong to (-1,0)
Asked
Active
Viewed 39 times
0
-
1Using intermediate value theorem, one form of it states if a continuous function changes sign in an interval then there is a root in that interval in this case (-1,0). – Ashar Tafhim Dec 23 '16 at 17:48
-
@AsharTafhim how do we know it changes sign – a25bedc5-3d09-41b8-82fb-ea6c353d75ae Dec 23 '16 at 18:09
-
1$f(0)=1$ and $f(-1)=b-c<0$ so the function changes sign in this interval. – Ashar Tafhim Dec 23 '16 at 18:10