What is expand (-i,-2j,3k)*(-3i,0j,k) ?

The solution to expand (-i,-2j,3k)*(-3i,0j,k) is -i(-3*0i,,jk),-2j(-3*0i,,jk),3k

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expand (-i,-2j,3k)*(-3i,0j,k)

expand

(- i, - 2 j, 3 k) \cdot (- 3 i, 0 j, k)

- i (- 3 \cdot 0 i,, jk), - 2 j (- 3 \cdot 0 i,, jk), 3 k

Solution steps

(- i, - 2 j, 3 k) (- 3 i, 0 \cdot j, k)

= (- i, - 2 \cdot 3, jk) (- 3 \cdot 0 i,, jk)

Apply the distributive law:

a (b - c) = ab - a c

a = (- 3 i, 0 \cdot j, k), b = - i,, c = 2 j, 3 k

= (- 3 i, 0 \cdot j, k) (- i,) - (- 3 i, 0 \cdot j, k) \cdot 2 j, 3 k

Apply minus-plus rules

+ (- a) = - a

= - i (- 3 \cdot 0 i,, jk), - 2 j (- 3 \cdot 0 i,, jk), 3 k

\frac{7 x ^{2} + 5 x + 7}{( x - 2 ) ( x ^{2} + 2 x + 1 )}

(161 - \frac{x}{10}) \cdot x

e^{y} (1 + x^{2}) y^{'} (x) - x (1 + e^{y})

\frac{4 x}{( x - 1 ) ^{2} ( x + 1 )}

\frac{d}{d x} ((5) (x^{4} - \frac{10}{x}))

What is expand (-i,-2j,3k)*(-3i,0j,k) ?
The solution to expand (-i,-2j,3k)*(-3i,0j,k) is -i(-3*0i,,jk),-2j(-3*0i,,jk),3k