# 演習問題

$\stackrel{\to }{a}=\left(4,3,1\right)$$\stackrel{\to }{b}=\left(2,-1,1\right)$ のベクトルの外積 $\stackrel{\to }{a}×\stackrel{\to }{b}$ を求めよ．

$\stackrel{\to }{a}=\left(4,1,3\right)$$\stackrel{\to }{b}=\left(1,2,1\right)$$\stackrel{\to }{c}=\left(2,-1,2\right)$外積 $\stackrel{\to }{a}×\left(\stackrel{\to }{b}+\stackrel{\to }{c}\right)$ を求めよ．

$\stackrel{\to }{a}=\left(4,1,3\right)$$\stackrel{\to }{b}=\left(1,2,1\right)$$\stackrel{\to }{c}=\left(2,-1,2\right)$外積 $\stackrel{\to }{a}×\left(\stackrel{\to }{b}×\stackrel{\to }{c}\right)$ を求めよ．

$\stackrel{\to }{a}=\left(5,3,-2\right)$$\stackrel{\to }{b}=\left(1,-1,-4\right)$$\stackrel{\to }{c}=\left(-6,2,-3\right)$外積 $\stackrel{\to }{a}×\left(\stackrel{\to }{b}+\stackrel{\to }{c}\right)$ を求めよ．

$\stackrel{\to }{a}=\left(4,1,3\right)$$\stackrel{\to }{b}=\left(1,2,1\right)$$\stackrel{\to }{c}=\left(2,-1,2\right)$外積 $\stackrel{\to }{a}×\left(\stackrel{\to }{b}+\stackrel{\to }{c}\right)$ を求めよ．

$\stackrel{\to }{a}=\left(5,3,-2\right)$$\stackrel{\to }{b}=\left(1,-1,-4\right)$$\stackrel{\to }{c}=\left(-6,2,-3\right)$