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S. What is the positive value of m forwhich the roots of the equation12x2 + mx + 5 = 0 are in the ratio3: 2?(a) 5√10 (b)5√10 /12 (c) 5/12 d) 12/5 |
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Answer» Let the roots beα,β αβ=32 α+β=−m12 αβ=5/12 α=3/2β⇒3/2β²=5/12 |
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