Question

if x²+1/x²=3,then find x+1/x=​

Answer 1

Answer:

If x+1/x=-7, then what is value of x²-1/x? 1,513 Views ... [x+(1/x)]^2 = [x-(1/x)]^2 + 4x * (1/x) = (3/2)^ 2 + 4 = 9/4 + 4 = (16+9)/4 = 25/4. x+(1/x) = √(25/4) = 5/2 ...

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Answer 2

Answer:

(x+1/x)^2 = x^2+1/x^2 + 2

= 3+2=5 ( putting the value if x^2+1/x^2 that is 3)