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प्रश्न
What is the value of discriminant for the quadratic equation X2 – 2X – 3 = 0?
विकल्प
–16
16
8
4
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उत्तर
16
Explanation:
b2 – 4ac = (–2)2 – 4(1)(–3)
= 4 + 12
= 16
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