Study guide and
1 practice problem
on:
Algebra of cross products
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The cross product of a sum is the sum of cross products: $$\bfa \times (\bfb + \bfc) = \bfa \times \bfb + \bfa \times \bfc.$$
Related topics
Cross product
(17 problems)
Multivariable calculus
(147 problems)
Practice problem
Compute $\bfi \times (\bfi + \bfk)$ in two ways:
By the determinant formula
By expanding the sum and recalling the cross products of standard coordinate vectors with each other
Solution