the-equation-f-x-0-has-real-roots-in-the-interval-a-b-if-A-f-a-gt-0-and-f-b-gt-0-B-f-a-lt-0-and-f-b-lt-0-C-f-a-gt-0-and-f-b-0-D-f-a-gt-0-and-f-b-lt-0-

Question Number 66226 by Rio Michael last updated on 11/Aug/19

t h e e q u a t i o n f (x) = 0 h a s r e a l r o o t s i n

t h e i n t e r v a l (a, b) i f

A - f (a) > 0 a n d f (b) > 0

B f (a) < 0 a n d f (b) < 0

C - f (a) > 0 a n d f (b) = 0

D f (a) > 0 a n d f (b) < 0

Commented by Prithwish sen last updated on 11/Aug/19

A and D