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Nastasia [14]
2 years ago
12

Question 3 of 10 Evaluate: (4/5) 1/2 O A. 2/25 O B. 2/5 O C.4:5 O D.4/25

Mathematics
1 answer:
Natasha2012 [34]2 years ago
5 0

Answer:

2/5

Step-by-step explanation:

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\|\mathbf v\times\mathbf w\|=\|\mathbf v\|\|\mathbf w\|\sin\theta

\mathbf v\times\mathbf w=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\1&1&0\\1&1&1\end{vmatrix}
\mathbf v\times\mathbf w=\begin{vmatrix}1&0\\1&1\end{vmatrix}\mathbf i-\begin{vmatrix}1&0\\1&1\end{vmatrix}\mathbf j+\begin{vmatrix}1&1\\1&1\end{vmatrix}\mathbf k

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