Question

Tolong Dijawab soal digambar​

Answer 1

Jawaban:

(-5, -4)

Penjelasan dengan langkah-langkah:

A (-3, -1) = -3i-j

B (-9, -7) = -9i-7j

C (-4, -3) = -4i-3j

AB - AC = ?

AB = B - A

AB = -9i-7j-(-3i-j)

AB = -9i+3i-7j+j

AB = -6i-6j = (-6, -6)

AC = C - A

AC = -4i-3j-(-3i-j)

AC = -4i+3i-3j+j

AC = -i-2j = (-1, -2)

AB - AC = -6i-6j-(-i-2j)

AB - AC = -6i+i-6j+2j

AB - AC = -5i-4j = (-5, -4)