Question

proof of this equation​

Answer 1

Answer:

=2a^2 / b^2 - a^2

Step-by-step explanation:

a^-1 + a^-1

=1a^-1 + 1a^-1 ....... [-1+(-1)=2]

=2a^2 ................ 1 ( negative+ negative=

positive)

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

property : (a+ b) ( a-b) = a^2 -b ^2 and 1