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Question
If m - n = 0.9 and mn = 0.36, find:
m2 - n2.
Sum
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Solution
m2 - n2
= (m + n)(m - n)
= (±1.5)(0.9)
= ±1.35.
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If a - b = 0.9 and ab = 0.36; find:
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If a - `1/a`= 8 and a ≠ 0 find :
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