if a and B are the roots of the quadratic equation x2- 6×+9=0 then 1/a+1/b = ?
please give step by step explanation
Answers
Answered by
1
Answer:
2/3
Step-by-step explanation:
x2- 6×+9=0
a nad b are roots
so a+b=6
ab=9/1=9
1/a+1/b
=(a+b)/ab
=6/9
=2/3
Answered by
1
Answer:
9x^2+6x+1=0
Step-by-step explanation:
a+b= -6, ab=9
roots 1/a,1/b
x^2-(1/a+1/b)x+1/ab=0
x^2-(a+b/ab)x+1/ab=0
x^2-6/9x+1/9=0
9x^2-6x+1=0
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