Question

formula of



a²-1/a²=



expantion

​

Answer 1

Answer:

a2-1/a2=(a-1/a)+2

hope it will help you

Answer 2

Step-by-step explanation:

since a - 1/a^2=a^2+1/a^2-2

therefore,

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