Q19 of 227 Page 114

If ax2 + bx + c = 0 has equal roots, then c is equal

Given: The quadratic equation has equal roots

Here,


b2–4ac = 0 (∵ The quadratic equation has equal roots)


⇒ b2–4ac = 0


⇒ b2 = 4ac


⇒ 4ac = b2


⇒ c =


∴ The value of c =


∴ Correct Option is - Option (B)

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