10 DANCE 2

10 DANCE 2

Matematika dikumpulkan bsok help kack​

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)

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