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Grade:
        
The value of a for which the equation x3-3x+a=0 has two distinct roots in [0,1] is given by
A) - 1
B) 1
C) 3
D) None of these 
one year ago

Answers : (1)

Saurabh Koranglekar
askIITians Faculty
3160 Points
							Dear student

for cubic equation​x^3-3x+a=0

for a=-1 x=​ -2.1038034027355366,​ 1.0519017013677683 + i* 0.5652358516771708,​ 1.0519017013677683 - i* 0.5652358516771708

a=1 x=​ 1.53208888623796,​ -1.87938524157182,​ 0.34729635533386

a=3 x=​ -2.1038034027355366,​ 1.0519017013677683 + i* 0.5652358516771708,​ 1.0519017013677683 - i* 0.5652358516771708

therfore none of these
one year ago
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