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# Help

If A and B are vectors, then what is the value of (A+B)cross(A-B) ??

Note by Gaurav Sharma
2 years, 11 months ago

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(A+B)×(A-B)=A×A-A×B+B×A-B×B=2(B×A)

- 2 years, 11 months ago

thanks !

- 2 years, 11 months ago

$$*$$ is for dot product or cross product?

- 2 years, 11 months ago

cross

- 2 years, 11 months ago

X is for cross product and " . " is for dot

- 2 years, 11 months ago