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If m+n=5 and mn=6, find the value of m-n |
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Answer» Answer: Step-by-step EXPLANATION: (m+N)² = m² + n² + 2mn 5² = m² + n² + 2 × 6 25 - 12 = m² + n² m² + n² = 13 (m - n)² = m² + n² - 2mn = 13 - 2 × 6 = 1 (m -n)² = 1 so m - n = root 1 ie 1 |
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