Soal !
Diketahui vektor :
2. i = a + r
j = q - p
l = d - r
a = (2,1)
b = (0,7)
c = (-3,4)
d = (5,-2)
semua vektor dimulai dari titik (10,10) !! maka tentukan :
1. z = a + b
q = b - a
p = c + d
r = b + d
q = b - a
p = c + d
r = b + d
2. i = a + r
j = q - p
l = d - r
3. o = -z * p
m = 3q + z
4. a'(2,1) T (3/-2) a' = ?
------->
r T (1/4) r' = ?
------>
Jawab :
1. z = a + b
= (2,1) + (0,7)
= (2+0) (1+7)
= (2,8)
q = b - a
= (0,7) - (2,1)
= (0 - 2) (7-1)
= (-2,6)
p = c + d
= (-3,4) + (5,2)
= (-3 + 5) (4 + 2)
= (2,6)
r = b + d
= (0,7) + (5,2)
= (0 + 5) (7 + 2)
= (5,9)
2. i = a + r
= (2,1) + (5,9)
= (2 + 5) (1 + 9)
= (7,10)
j = q - p
= (-2,6) - (2,6)
= (-2 - 6) (6 - 2)
= (-4, 0)
l = d - r
= (5,2) - (5,9)
= (5 - 5) (2 - 9)
= (0,-7)
3. o = -z * p
= -(2,8) * (2,6)
= (-2,-8) * (2,6)
= (-2 * 6) (-8 * 6)
= (-4, -48)
m = 3 q + z
= 3 (-2,6) + (2,8)
= (-6,18) + (2,8)
=(-4,26)
4. a (2,1) T (3/2) a' = ?
-------->
a' = (2 + 3 , 1+ (-2))
= (5,-1)
r (5,9) T (1/4) r' = ?
-------->
r' = (5 +1 , 9 + 4)
= (6,13)
Nama : Anita P. Angelina
NIM : 13110275
Smstr : V
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