University:
Michigan State University
Course:
ERG 160 | Success in Science, Technology, Engineering, and Mathematics
Academic year:

2019
Views:

54

Pages:

1
Author:

Athena Harrison

COSMOS: Complete Online Solutions Manual Organization System Chapter 3, Solution 35. P ⋅ Q = ( − 4i + 8j − 3k ) ⋅ ( 9i − j − 7k ) = ( − 4 )( 9 ) + ( 8 )( −1) + ( − 3)( − 7 ) = − 23 or P ⋅ Q = −23 W P ⋅ S = ( − 4i + 8 j − 3k ) ⋅ ( 5i − 6 j + 2k ) = ( − 4 )( 5 ) + ( 8 )( − 6 ) + ( − 3)( 2 ) = − 74 or P ⋅ S = −74 W Q ⋅ S = ( 9i − j − 7k ) ⋅ ( 5i − 6 j + 2k ) = ( 9 )( 5 ) + ( −1)( − 6 ) + ( − 7 )( 2 ) = 37 or Q ⋅ S = 37 W .

COSMOS Chapter 3 Solution 35

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