Question

Tentukan fungsi g dalam bentuk pasangan terurut jika diketahui f= {(0,7),(7,1),(6,3)} dan f komposisi g = {(-5,0),(-1,1),(7,3)}

Answer 1

f= {(0,7),(7,1),(6,3)} 
g = {(-5,0),(-1,1),(7,3)}

f(0) = 7                               (fog)(-5) = 0
f(7) = 1                               (fog)(-1) = 1 
f(6) = 3                                (fog)(7) = 3

(fog)(-1) = 1
f(g(-1)) = 1
f(g(-1)) = f(7)
................
g(-1) = 7
................

(fog)(7) = 3
f(g(7)) = f(g)
.............
g(7) = 6
.............

yang satu kok blm bisa :)

maka sementara 
g = {(-1,7),(7,6)}