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15. Find the cross product a x b, and verify that it is orthogonal to both a and b.

(a) a = (2, 6, 0) , b = (4, –1, 1)
(b) a =i-j-k, b = }i+j- 4k
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Transcribed Image Text

(a) a = (2, 6, 0) , b = (4, –1, 1) (b) a =i-j-k, b = }i+j- 4k