Given (a + b) &# 178; = m, (a-b) &# 178; = n, find the value of: (1) (A & # 178; + B & # 178;) / AB; (2) ab It's represented by m, n

（1）2(m+n)/(m-n)
(2) (m-n)/4

RELATED INFORMATIONS

1. If we know (a + b) &# 178; = m, (a-b) &# 178; = n, then ab=_____
2. If a & # 178; - B & # 178; - 4 - () = A & # 178; + B & # 178; + AB, then the formula in () is? 1.8-8x/1.2-1.3-3x/2=5x-0.4/0.3
3. Please use the square difference formula: (a + b) (a-b) = A & # 178; - B & # 178;, calculate: 100 & # 178; - 99 & # 178; + 98 & # 178; - 97 & # 178; +... + 2 & # 178; - 1 & # 178;
4. The results of (a + b) &# 178; - (a-b) &# 178; are calculated
5. (a-b) (A & # 178; + B & # 178;) (a ^ 4 + B ^ 4) (a + b) how to use the square difference formula
6. If we want to make 16x & # 178; + 1 a complete square, we should add the following formula
7. The following formula can be calculated by the square difference formula: A. (a + b) (- a-b) B. (a-b) (B-A) C. (a-b) ^ D. (- A + b) (- a-b)
8. If the trinomial square difference formula (a + B-C) becomes a square difference formula, which formula should it multiply with
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11. If a + B = m, ab = n, find the value of a & # 178; + B & # 178
12. Sin & # 178; a + cos & # 178; a = 1. What other formulas like this?
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