Matematika Sekolah Menengah Atas tolong dongg pake cara​

malcolmsauerulv – May 11, 2023

tolong dongg pake cara​

Penjelasan dengan langkah-langkah:

PROYEKSI VEKTOR

2a + b = (4+3, 4+2, 2+2) = (7, 6, 4)

(2a + b) × c = 7×(–4) + 6×3 + 4×0

(2a + b) × c = –28 + 18 + 0

(2a + b) × c = –10

|c|² = (–4)²+3²+0² = 23

Proyeksi vektor (2a + b) pada vektor c

= (2a + b) × c [ –4, 3, 0]

|c|²

= –10 [ –4, 3, 0] ✔

23

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