Question

if a²+1/a²=786 then find the value of a-1/a​

Answer 1

here's your answer dude in attachment.

hope it helps you.

Answer 2

a^2+1/a^2-2=(a-1/a)^2

786 -2=(a-1/a)^2

784 =(a-1/a)^2

28= (a-1/a)