özdeşikler 10 örnek lütfeenn ?
1. x2 + y2 = (x + y)2 – 2xy
2. x2 + y2 = (x – y)2 + 2xy
3) (x – y)2 = (x + y)2 – 4xy
4) (x + y)2 = (x – y)2 + 4xy
5) x3 – y3 = (x – y)3 + 3xy (x – y)
6) x3 + y3 = (x + y)3 – 3xy (x + y)
7) x2 + y2 + z2 = (x + y + z)2 – 2 (xy + xz + yz)
(a + b)3 = a3 + 3a2b + 3ab2 + b3
(a – b)3 = a3 – 3a2b + 3ab2 – b3
(a + b) (a – b) = a2 – b2