Diketahui a = 6i - mj + 3k b = 2i + 5j - nk c = pi + j - 4k Jika a = 2b - 3c Tentukan m + n - p!

2b = 4i + 10j - 2nk
-3c = -3pi -3j + 12k

a = 6i - mj +3k
a = 4-3p +7 + 12 - 2nk

4-3p = 6
-3p = 6-4
p = 2/-3

-m = 7
m = -7

-2n + 12 = 3
-2n = -9
n = 9/2

m + n -p
= -7 + 9/2 + 2/3
= -5/2 + 2/3
= -15/6 + 4/6
= -11/6

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#Semoga bermanfaat ^_^