Tugas Matematika diskret


soal 1.

A = {1, 2, 3, 4, 5}

R = {(a, b) | a habis dibagi b}

Apakah R termasuk himpunan refleksif ?

soal 2.

F(x) = log 2x2 + 4        G(x) = sin 4x + 2         H(x) =  tg 2x

Carilah : (f o g o h)(5)

(g o f o h)(2)

(h o g o f)(10)

soal 3.

Apakah relasi dibawah ini ekuivalen? Jelaskan!

A = {a, b, c, d, e, f}

R = {(a,a), (a,b), (b,a), (b,b), (c,c), (d,d), (d,e), (d,f), (e,d), (e,e), (f,d), (f,e), (e,f), (f,f)}

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