Question

if x-1/x =-1 then find x^+1/x^​

Answer 1

x -1/x = -1

squaring both side

(x)²+ (1/x)² -2×(x) × 1/x = (-1)²

x²+1/x²-2 = 1

x²+1/x²= 1+2 = 3

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