*द्विघात समीकरण ax² + bx + c = 0 ;a ≠ 0 के दोनों मूल वास्तविक और बराबर होंगे, जब:*
1️⃣ b² - 4ac = 0
2️⃣ b² - 4ac < 0
3️⃣ b² - 4ac>0
4️⃣ इनमे से कोई नही
Answers
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Answer:
b^2-4ac=0
Step-by-step explanation:
Am I right mr??
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Given : द्विघात समीकरण ax² + bx + c = 0 ; a ≠ 0 के दोनों मूल वास्तविक और बराबर होंगे
To Find : Correct choice
1️⃣ b² - 4ac = 0
2️⃣ b² - 4ac < 0
3️⃣ b² - 4ac>0
4️⃣ इनमे से कोई नही
Solution:
ax² + bx + c = 0 ; a ≠ 0 के दोनों मूल वास्तविक और बराबर होंगे
if b² - 4ac = 0
b² - 4ac = 0 is correct answer
b² - 4ac < 0 => roots are not real
b² - 4ac>0 => roots are real and unequal
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