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Let vec aa n d vec b be unit vectors th...

Let ` vec aa n d vec b` be unit vectors that are perpendicular to each other. Then `[ vec a+( vec axx vec b) vec b+( vec axx vec b) vec axx vec b]` will always be equal to `1` b. `0` c. `-1` d. none of these

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CENGAGE ENGLISH-VECTOR ALGEBRA-All Questions
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