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Find A x B, where A=(5i+j) , B=（i-5j)
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3 votes
Find A x B, where A=(5i+j) , B=（i-5j)

User MistyDawn
by
5.8k points

2 Answers

0 votes

Answer:

5i² - 25ij +ji-5j²

Explanation:

Use distributive property

User Alvaro Denis Acosta
by
5.6k points
3 votes

Answer:

The answer is 5i² - 24ij - 5j²

Explanation:

A = (5i+j)

B = (i-5j)

A × B is

( 5i + j) ( i - 5j)

Expand

We have

5i² - 25ij + ij - 5j²

The final answer is

5i² - 24ij - 5j²

Hope this helps you.

User Karoly S
by
5.7k points
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