x - y = 2 এবং xy = 24 হলে (x + y)2 এর মান কত?
Solution
Correct Answer: Option C
দেওয়া আছে,
x - y = 2
xy = 24
এখন
(x + y)2 = (x - y)2 + 4xy
= (2)2 + 4 × 24
= 4 + 96
= 100
x - y = 2
xy = 24
এখন
(x + y)2 = (x - y)2 + 4xy
= (2)2 + 4 × 24
= 4 + 96
= 100
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