Cari komponen-z ûz bagi vektor unit û yang menghala ke arah a = (−6, 4, −2).
Lembaran kerja Vektor: hasil darab titik & silang dengan jawapan
1.Mudah
a = (−6, 4, −2)
ûz =
2.Mudah
Cari magnitud |a| vektor a = (−5, −2, −8).
a = (−5, −2, −8)
|a| =
3.Sederhana
Cari hasil darab titik a·b bagi a = (−6, 3, −5) dan b = (−2, 5, −6).
a = (−6, 3, −5)b = (−2, 5, −6)
a·b =
4.Sederhana
Cari sudut θ antara vektor a = (−5, 0, 3) dan b = (1, −1, −6), dalam darjah.
a = (−5, 0, 3)b = (1, −1, −6)
θ = °
5.Sukar
Cari isi padu V parallelepiped yang sisinya dari satu bucu ialah a = (3, −1, 5), b = (4, 2, 5) dan c = (−5, 3, −1).
a = (3, −1, 5)b = (4, 2, 5)c = (−5, 3, −1)
V =
6.Sukar
Bagi a = (−5, −1, 3) dan b = (−4, 6, 1), cari komponen-x (a × b)x hasil darab silang a × b.
a = (−5, −1, 3)b = (−4, 6, 1)
(a × b)x =
Kunci jawapan
- 1. ûz = −0.2673
- 2. |a| = 9.644
- 3. a·b = 57
- 4. θ = 129.8 °
- 5. V = 80
- 6. (a × b)x = −19
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