Easy
1 point
ID: #20740
Question
(a2 + b2– c2 + 2ab)/(a2 – b2 + c2 + 2ac) = কত?
Options
1
a + b + c
Correct Answer
2
(a + b – c)/(a – b + c)
Correct Answer
3
(a – b + c)/(a + b – c)
Correct Answer
4
(a + b – c)/(a + b + c)
Correct Answer
Explanation
লব: (a+b)² - c² = (a+b+c)(a+b-c)। হর: (a+c)² - b² = (a+c+b)(a+c-b)। কাটাকাটি করলে থাকে (a+b-c)/(a-b+c)। সঠিক উত্তর (খ)।