Jika matriks P = ( 4 3 )

P = (4 3) P^T= (4 1)
(1 1 ) (3 1)
P^T × Q^T = (14 10)
(-18 -11)
maka :
(4 1)(a c) = (14 10)
(3 1)(b d). (-18 -11)
4a+b = 14
4c+d = 10
3a+b = -18
3c+d= -11,kita ambil dua persamaan a dan b
4a+b=14
3a+b=-18,di kurang
.a= 32
4(32)+b=14
128+b =14
.b= (-114)ambil lagi persamaan c dan d
4c+d =10
3c+d=-11,dikurang lagi
.c = 21
3(21)+d=-11
61+d = -11
.d = (-72),jadi Q^T = (32 21)
(-114 -72)
jadi matrix Q adalah…
(32 -114)
(21 -72)
🙂 semoga membantu