hsepalip31qmq hsepalip31qmq

24-01-2018
Mathematics

contestada

if a+1/a =5
find
a2+1/a2

Respuesta :

jackyang0325p2z5fu jackyang0325p2z5fu

24-01-2018

Square original equation, you get a^2+2+1/a^2=25, subtract two from both sides, a^2+1/a^2=23

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