A=(2 3) vektor b = (3 9) dan c=a+b, vektor satuan dari c adalah…..
Jawaban:
vektor a = ( 2, 3 )
vektor b = ( 3, 9 )
• Cari nilai vektor c
c = a + b
c = ( 2, 3 ) + ( 3, 9 )
c = ( 5, 12 )
• Cari panjang vektor c
|c| = √5² + 12²
|c| = √25 + 144
|c| = √169
|c| = 13
panjang vektor c = 13
• Vektor satuan c
= 1/|c| ( vektor c )
= 1 / 13 ( 5, 12 )
= ( 5/13, 12/13 )