josephyilgak2019
josephyilgak2019 josephyilgak2019
  • 23-06-2021
  • Physics
contestada

if p=2i+4j+3k and q=I+5j-2k,find P×q.
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Respuesta :

lublana
lublana lublana
  • 28-06-2021

Answer:

[tex]p\times q=-23i+7j+6k[/tex]

Explanation:

We are given that

p=2i+4j+3k

q=i+5j-2k

We have to find pxq

We know that

[tex]p\times q=\begin{vmatrix}  i&j  &k\\  2&4  & 3\\  1& 5 & -2\end{vmatrix}[/tex]

[tex]p\times q=i(-8-15)-j(-4-3)+k(10-4)[/tex]

[tex]p\times q=-23i+7j+6k[/tex]

Hence,[tex]p\times q=-23i+7j+6k[/tex]

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