Please solve the question;if x2 + 1/x2 = 62, find the value of x+1/xThank you.

  • 6

x^2*1/x^2*2=2

add it to both sides

= x^2 + 1/x^2 + 2(x^2)(1/x^2) = 62+2 =64

= (x + 1/x) ^2 = 64 [(a+b)^2=a^2+2ab+b^2]

= x + 1/x =√64 =8

tnks

  • 2
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