Question

According to IT root lies between (a,b). if f(x) is a continous function on (a,b) and? (MCQ)
A) f(a)f(b)=0
B) f(a)f(b)< 0
C) f(a)f(b)>0
D) NONE​

Answer 1

$\huge\underline\mathfrak\color{blue}Answer$

Given a,b are the roots of polynomial f(x)

Rolle's theorem states that if f(x) be continuous on [a,b], differentiable on (a,b) and f(a)=f(b) then there exists some c between a and b such that f

′

(c)=0

Therefore, there exists atleast one root lying between a and b of the polynomial f ′ (x)

Answer 2

Answer:

c is wright answer chgchvbhdjjcdhbcsxc