Question

find k value please​

Answer 1

Answer:

k=2a

Step-by-step explanation:

1/a^2-x^2=1/k[(a+x)+(a-x)÷a^2-x^2]

1/a^2-x^2=1/k[2a÷a^2-x^2]

1=1/k[2a]

2a=k

k=2a

Answer 2

Answer:

2a

Step-by-step explanation:

1/a²-x²= 1/k(1/a-x+1/a+x)

=1/k(a+x+a-x/a²-x²)

1/k(2a/a²-x²)

a²-x²/a²-x²=2a/k

k=2a