Question

If x square + 1 by x square equals to 27 then find
¡ x + 1 by x
¡¡ x - 1 by x

Answer 1

Step-by-step explanation:

x^2 + 1/x^2 =27 ,x^2 +1 =27x^2 , 1=27x^2-x^2 , 1=26x^2 ,x^2=1/26 ,X = √1/26

i) X + 1 /X = (√1/26) +1 /(√1/26) =√26×(√1/26 +1) =√1+√26 =1 +2√13

ii) X - 1/X = (√1/26) -1/(√1/26) =√26×(√1/26 -1) =√1 -√26 =1- 2√13

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