a+b=17 ও ab=60 হলে, (a-b)2 এর মান কত?
Solution
Correct Answer: Option A
দেওয়া আছে,
a+b=17 এবং ab=60
(a-b)2 =(a+b)2 -4ab
=(17)2-4 x 60
=289-240
=49
a+b=17 এবং ab=60
(a-b)2 =(a+b)2 -4ab
=(17)2-4 x 60
=289-240
=49
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