Question

plz solve this
If a^2-3a-1=0 find a^2+1/a^2

Answer 1

given = a^2-3a-1=0  from given a^2=3a+1 and a^2+1=3a   after putting the value as follows :- a^2+1/a^2=3a/3a+1  it is your answer ok bro