Question

if1,1,alpha are the roots of ofx3-6x2+9x-4=0 then find alpha
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Answer 1

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Answer 2

Answer:

4

Step-by-step explanation:

the three roots are 1,1,alpha.

we know in a cubic expression, s3(alpha.beta.gaama) = -d/a

from the equation we get, a= 1, b= -6, c=9 and d= -4

∝β and gama= -(-4)/1

                       =4 is the answer