7/25/2019 Astronomi: Latihan Soal Vektor

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Latihan Soal Vektor

1. Find the angle A in the triangle with vertices A = (2, -1, -1), B = (, 1,-2) and ! = (1, -", 1).

2. #$ A = (2, -1), B = (-1, ") and ! = (, 1), e%&ress each o$ the $ollowingvectors as a linear co'ination o$ the standard asis vectors # and *

". #$ a= 2i+ -2k and = "i- 2- k

nd. a. a+ ,. . a- ,/. c. "a- 2,0. d. a,. e. ,

3.

1. #$ a= 2i+ -2k and ="i- 2- k, then

11. a. calc4late a5,12. . nd the angle

6 etween a and

7/25/2019 Astronomi: Latihan Soal Vektor

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1".1. #$ a= 2i+ -"kand = -2+ k, then calc4late a % 1.