a+b=7, ab=10 a2+b2+3ab=কত?
a+b=7, ab=10 a2+b2+3ab=কত? Correct Answer 59
a² + b² + 3ab = a² + b² + 2ab + ab = (a + b)² + ab = 7² + 10 [মান বসিয়ে] = 49 + 10 = 59a+b=7, ab=10 a2+b2+3ab=কত? Correct Answer 59
a² + b² + 3ab = a² + b² + 2ab + ab = (a + b)² + ab = 7² + 10 [মান বসিয়ে] = 49 + 10 = 59