dikumpulkan bsok help kack
(Langsung caranya)
1. [tex]p = \frac{| U * V|}{V} = \frac{|\left[\begin{array}{ccc}4\\6\end{array}\right]* \left[\begin{array}{ccc}-6\\8\end{array}\right]|}{\sqrt{(-6)^{2}+8^{2} } }[/tex]
= [tex]p = \frac{24}{10} = 2,4[/tex]
p = 2,4
2. [tex]\sqrt{13} = \frac{\left[\begin{array}{ccc}5\\x\end{array}\right] *\left[\begin{array}{ccc}-3\\2\end{array}\right] }{\sqrt{-3^{2} + 2^{2} }}[/tex]
=> [tex]\sqrt{13} = \frac{-15+2x}{\sqrt{13} }[/tex]
=> 13 = -15 + 2x
=> 13 + 15 = 2x
28 = 2x
x = 14
Hints:
=> Kalikan silang saat persamaan seperti ini [tex]\sqrt{13} = \frac{-15+2x}{\sqrt{13} }[/tex]
(Tandai sebagai yang terbaik)
[answer.2.content]
