দেওয়া আছে, x2 +1x2=3
⇒x -1x2 + 2 × x ×1x=3 ⇒x -1x2 +2 = 3 ⇒ x -1x2 =3-2 = 1 ⇒ x -1x = 1 ∴ x -1x =1
আবার, x2 -1x2 3
⇒ x -1x2 -2 × x × 1x= 3 ⇒ x -1x2 -2 = 3 ⇒ x -1x2 = 5 ∴ x -1x = 5
এখন দেওয়া আছে, x2 +1x23 = x + 1x x - 1x3 = 5 13 = 53 = 55
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