a + b = 12 এবং ab = 35 হলে, a2+b2 এর মান কত হবে?
Solution
Correct Answer: Option C
a + b = 12
ab = 35
ab = 35
a² + b² = (a + b)2 - 2ab
⇒ a² + b² = (12)² − 2 × 35
⇒ a² + b² = 144 − 70
⇒ a² + b² = 74
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