Easy
1 point
ID: #24828
Question
যদি log(a/b) + log(b/a) = log(a + b) হয়, তবে-
Options
1
a + b = 1
Correct Answer
2
a – b = 1
Correct Answer
3
a = b
Correct Answer
4
a² – b² = 1
Correct Answer
Explanation
log(a/b) + log(b/a) = log((a/b) * (b/a)) = log(1) = 0. প্রশ্নমতে, log(a+b) = 0 বা a+b = 1 (যেহেতু log 1 = 0)।