nilai a dan b dari matriks berikut

Transpose(P) = Q maka

log(b - 2) = log(a)
⇔ b - 2 = a

log(2a - b) = 1
⇔ 2a - b = 10      (*ingat log(10) = 1*)
⇔ 2(b-2) - b = 10
⇔ 2b - 4 - b = 10
⇔ b - 4 = 10
⇔ b = 14

a = b - 2
a = 14 - 2
a = 12