Matematika tolong dijawab dgn benar ya jangan asal-asalan !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!mata pelajaran nya MTK peminatan kelas X SMA​

oletapredoviculv – March 05, 2023

tolong dijawab dgn benar ya jangan asal-asalan !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
mata pelajaran nya MTK peminatan kelas X SMA​

Jawab:

vektor

A(5, 2)  dan B(-3, 10)

i. Vektor AB = b - a
AB = (-3-5) , (10-2)
AB = (-8 , 8)

2. panjang AB = |AB|
|AB| = √(-8)²+ (8)² = 8√2

3. Vektor satuan AB
[tex]\sf = \dfrac{1}{|AB|} ~. \overline {AB}[/tex]

[tex]\sf = \dfrac{1}{8\sqrt 2} ~. (-8 ,8)= \{ \frac{-8}{8\sqrt2}, \frac{8}{8\sqrt2}\} = \{ -\frac{1}{\sqrt2}, \frac{1}{\sqrt2}\}[/tex]

4.  panjang  vektor satuan AB= 1
= (-1/√2)² + (1/√2)²
= 1/2 + 1/2
= 1

[answer.2.content]