# Math Help - Need help with an equation.

1. ## Need help with an equation.

Hello,

I need help with the following:

"Verify that Inverse(I + V) = I-0.5V
, provided that V is idempotent"

(I=Identity Matrix)

Moljka.

2. ## Re: Need help with an equation.

Originally Posted by moljka
Hello,

I need help with the following:

"Verify that Inverse(I + V) = I-0.5V
, provided that V is idempotent"

(I=Identity Matrix)

Moljka.

Consider:

$(I+V)(I-V/2)$

and the definition of idempotent

CB

3. ## Re: Need help with an equation.

Thank you very much! You sir are a gentleman and a scholar.

Kind regards,

Moljka