Answer:
0
Explanation:
We need to simplify the given expression . The given expression is ,
→ 1/ ( m - n) - (m + n)/ ( m² - n² )
→ 1/ ( m - n) - ( m + n)/(m+n)(m-n)
- Using a² - b² = (a+b)(a-b)
- Now cancel m+n in numerator and denominator .
→ 1/( m - n) - 1/ ( m - n)
→ 0
Hence the required answer is 0 .