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If ax^2+bx+c=0has equal roots,then,c= a...

If `ax^2+bx+c=0`has equal roots,then,c=
a)`b/(2a)` b)`-b/(2a)` c)`b^2/(4a)` d)`-b^2/(4a)`

A

`b/(2a)`

B

`-b/(2a)`

C

`b^2/(4a)`

D

`-b^2/(4a)`

Text Solution

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R G PUBLICATION-QUADRATIC EQUATIONS-EXERCISE
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