Correct Answer: Option D
আমরা জানি,
2(x2+y2) = (x+y)2 + (x-y)2
⇒2×185 = (x+y)2 + 32
⇒(x+y)2 = 361
∴ x+y =19.......(i)
আবার, x-y =3.......(ii)
(i) ও (ii) যোগ করে পাই, 2x = 22
∴x=11
তাহলে, (i) নং থেকে পাই, y=19-11=8
∴(x,y) = (11,8)
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