7. Given that ā•b = -6,||||= 4.3 and the angle between a and 5 is 0= determine if bis a unit vector or not. 8. Given p=(5,-2.1) and = (0.4.8) compute projā. 9. Given ā= i +3j-2k and b=-31-4j+7k compute proj; b. 10. Determine the direction cosines and direction angles for 7 = (5.2₁-7).

7. Given that ā•b = -6,||||= 4.3 and the angle between a and 5 is 0= determine if bis a unit vector or not. 8. Given p=(5,-2.1) and = (0.4.8) compute projā. 9. Given ā= i +3j-2k and b=-31-4j+7k compute proj; b. 10. Determine the direction cosines and direction angles for 7 = (5.2₁-7).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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i need the answer quickly

7₁. Given that ā.b = -6, ||||= 4.3 and the angle between a and 5 is 0= determine if b is a unit
vector or not.
8. Given p=(5,-2.1) and = (0.4.8) compute projā.
9. Given ā= i +3j-2k and b=-31-4j+7k compute proj; b.
10. Determine the direction cosines and direction angles for 7 = (5.2₁-7).

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