a के किस मान के लिये द्विघात
समीकरण 9x^2-3ax+1%D0 के मूल
समान हो
+4,4
+2.2
+3,3
+5,5
Answers
Answered by
1
Answer:
if roots are equal, then
b^2 = 4ac
here, a=9, b= -3a, c = 1
(-3a)^2 = 4*9*1
9*a^2 = 36
a^2 = 4
a = +2,-2
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