Tolong bantu mtk yang cepat dong
Jawab:
Penjelasan dengan langkah-langkah:
vektor
perkalian skalar dan penjjumlahan
soal
A= (2, 3, -1)
B = (3, 1 , -2)
C = (4, -2 , 3)
2a + 3b – c =
= 2 (2, 3, -1) + 3 (3 , 1, -2)- (4, -2 , 3 )
= (4, 6, -2) + (9 , 3 , -6) + ( -4, 2 ,- 3)
= { (4 +9 – 4)), (6 +3+ 2), (-2 – 6 -3)}
= (9, 11, -11}
= 9i + 11 j – 11 k