Question
Engineering Mathematics Question on Newton’s and Lagrange polynomials
The smallest positive root of the equation
x5−5x4−10x3+50x2+9x−45=0
lies in the range
A
0 < x ≤ 2
B
2 < x < 4
C
6 ≤ x ≤8
D
10 ≤ x ≤ 100
Answer
0 < x ≤ 2
Explanation
Solution
The correct option is (A) :0 < x ≤ 2