
Modulus Vektor dan Vektor Satuan
Presentation
•
Mathematics
•
10th Grade
•
Medium
Zaenul Ihsan
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3 Slides • 3 Questions
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Modulus Vektor dan Vektor Satuan
By Zaenul Ihsan
2
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Panjang Vektor dan Vektor Satuan
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3
Tentukan vektor satuan dari p(1, 2, -2).
Contoh 2
Diketahui koordinat titik A(3, -1, -2) dan B(0, -1, 2). Tentukan panjang vektor BA.
Contoh 1
Modulus Vektor (Panjang Vektor) dan Vektor Satuan
Panjang Vektor dan Vektor Satuan
Solusi
BA = A - B
= (3, -1, -2) - (0, -1, 2)
= (3, 0, -4)
∣BA∣ = √(32 + 02 + (-4)2 )
= √(9+16)
=√25 = 5
jadi, panjang vektor BA adalah 5
Solusi
Panjang vektor p :
∣p∣ = √(12 + 22 + (-2)2 )
∣p∣ = √(1+4+4)
∣p∣ = √9 = 3
Vektor satuan p:
ep = (1/∣p∣)p
ep = (1/3)(1, 2, -2)
ep = (1/3, 2/3, -2/3)
4
Multiple Choice
Diketahui koordinat titik A(3, -1, -2) dan B(0, -1, 2). Tentukan vektor satuan dari vektor BA .
(3/5 , 0, -4/5)
(3/5, 2, -4)
(3, 2/4, 5)
(1/3, -3, 4)
5
Fill in the Blanks
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6
Open Ended
Diketahui vektor u (1, -3, 2) dan v (1, 1, 0). Apakah hasil dari ∣u∣ . ∣v∣ = ∣u∣ + ∣v∣ ?
Modulus Vektor dan Vektor Satuan
By Zaenul Ihsan
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