mohon bantuannya besok di kumpul terima kasih!

B[tex] B^{T} = \left[\begin{array}{ccc}a-1&-c\\0&d\\\end{array}\right] [/tex]

A+[tex] B^{T} [/tex] = C
[tex] \left[\begin{array}{ccc}1&a+b\\b&c\\\end{array}\right] [/tex] + [tex] \left[\begin{array}{ccc}a-1&-c\\0&d\\\end{array}\right] [/tex] = [tex] \left[\begin{array}{ccc}1&0\\1&1\\\end{array}\right] [/tex]

a=1
b=1
a+b-c=0
1+1-c=0
c=2
c+d=1
2+d=1
d=-1

a+b+c+d = 1+1+2+(-1)=3