Fairy111
May28-09, 12:41 PM
1. The problem statement, all variables and given/known data
I know that, (a^2+b^2).(c^2+d^2) = (ac+bd)^2 + (ad-bc)^2
I need to know however what (a^2+b^2).(c^2+d^2).(e^2+f^2) equals....
2. Relevant equations
3. The attempt at a solution
Any help would be great thankyou
I know that, (a^2+b^2).(c^2+d^2) = (ac+bd)^2 + (ad-bc)^2
I need to know however what (a^2+b^2).(c^2+d^2).(e^2+f^2) equals....
2. Relevant equations
3. The attempt at a solution
Any help would be great thankyou