by Farhana Rahim on 2024-11-17 17:13:12
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Question: a + b = 7 এবং ab = 12 হলে, 1/a2 + 1/b2 এর মান কত? |
A) 3/25 |
B) 25/144 |
C) 31/144 |
D) 11/49 |
Correct Answer: 25/144 |
ব্যাখ্যা: |