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# Prove the property of cross products (Theorem 11).Property 3: $a \times (b + c) = a \times b + a \times c$

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### Video Transcript

We have a cross B plus C. A cross diplomacy. Uh, you to prove that it must be plus equal to Crosby plus a crazy. So we know that first of all we will find the cross product of these two. Okay, so this will be equal to LHs equals two A cross. Because this is in the same way that will be nothing but a Crosby. And then plus that will this plus over here and then the cross of vivid C. So that would be a cross of see that is exactly what we need to do at RHS. Okay, thank you.

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