2009 · Q64
If (x/y) = (z/w), then what is (xy + zw) 2 equal to ?
Elementary MathematicsAlgebra
- A(x 2 + z 2 ) (y 2 + w 2 )
- Bx 2 y 2 + z 2 w 2
- Cx 2 w 2 + y 2 z 2
- D(x 2 + w 2 ) (y 2 + z 2 )
Explanation
Solved; answer A.
If (x/y) = (z/w), then what is (xy + zw) 2 equal to ?
Explanation
Solved; answer A.