Jawab:
48.
49.
50.
Jawaban:
49] (-6 , 5 , 2)
50] RS = 2i - 3j - 3k
51] |AB| = 10
Penjelasan dengan langkah-langkah:
49]
1/3 a + 2b
= 1/3 (-6 , 9 , -12) + 2(-2 , 1 , 3)
= (-2 , 3 , -4) + (-4 , 2 , 6)
= (-6 , 5 , 2)
50]
RS = S - R
RS = (3 , 2 , 1) - (1 , 5 , 4)
RS = (2 , -3 , -3)
RS = 2i - 3j - 3k
51]
AB = B - A
AB = (2 , -7) - (8 , 1)
AB = (-6 , -8)
|AB| = V((-6)^2 + (-8)^2)
|AB| = V(36 + 64)
|AB| = V100
|AB| = 10
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Jawab:
48.
49.
50.
Jawaban:
49] (-6 , 5 , 2)
50] RS = 2i - 3j - 3k
51] |AB| = 10
Penjelasan dengan langkah-langkah:
49]
1/3 a + 2b
= 1/3 (-6 , 9 , -12) + 2(-2 , 1 , 3)
= (-2 , 3 , -4) + (-4 , 2 , 6)
= (-6 , 5 , 2)
50]
RS = S - R
RS = (3 , 2 , 1) - (1 , 5 , 4)
RS = (2 , -3 , -3)
RS = 2i - 3j - 3k
51]
AB = B - A
AB = (2 , -7) - (8 , 1)
AB = (-6 , -8)
|AB| = V((-6)^2 + (-8)^2)
|AB| = V(36 + 64)
|AB| = V100
|AB| = 10