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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