New user? Sign up
Existing user? Log in
a2+b2=2c2+d2=1(ad−bc)2+(ac+bd)2= ? \begin{aligned} a^2 + b^2 & = & 2 \\ c^2+d^2 &=& 1 \\ (ad-bc)^2 + (ac+bd)^2 &=& \ ? \end{aligned} a2+b2c2+d2(ad−bc)2+(ac+bd)2===21 ?
Problem Loading...
Note Loading...
Set Loading...
