Question

x + 1 / x= 4 , find the value of

x^2+ 1 / x^2

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

x+1/x=4

(x+1/x)²=(4)² (a+1/a)²=a²+1/a²+2

x²+1/x²+2=16

x²+1/x²=14