Show that the roots of the equation (b-c)x^2 +(c-a)x +(a-b)=0 are equal if 2b =a+ c
Answers
Answered by
5
in this question ....we know that for equal roots discriminant must be zero. So, simply apply the formula [b^2 - 4ac =0 ] and proceed further ....
Here you will need the formula( which you might have studied in class 9th ) that is
(a+ b+ c)^2 = a^2 +b^2 +c^2 +2ab +2bc +2ac
Here you will need the formula( which you might have studied in class 9th ) that is
(a+ b+ c)^2 = a^2 +b^2 +c^2 +2ab +2bc +2ac
Attachments:
Similar questions