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Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
Engineering Mechanics - Data Intensity 3 Multiple Questions and Answers.
| 1. | For two vectors A and B, what is A.B (if they have angle ? between them)? | ||
| A. | |A||B| cos? | ||
| B. | |A||B| | ||
| C. | ?(|A||B|) cos? | ||
| D. | |A||B| sin? | ||
| 2. | Which statement is right? | ||
| A. | Communitive law: A.B =B.A | ||
| B. | Multiplicative law: a(A.B) = Ax(aB) | ||
| C. | Multiplicative law: A.(B+D) = (A.B) + (A.D) | ||
| D. | Communitive law: a(A.B) = A.(aB) | ||
| 3. | What is Distributive law? | ||
| A. | A.B =B.A | ||
| B. | a(A.B) = A.(aB) | ||
| C. | A.(B+D) = (A.B) + (A.D) | ||
| D. | a(A.B) = AxB | ||
| 4. | What is multiplication law? | ||
| A. | A.B =B.A | ||
| B. | a(A.B) = A.(aB) | ||
| C. | A.(B+D) = (A.B) + (A.D) | ||
| D. | a(A.B) = AxB | ||
| 5. | Which is true for two vector A = A1i + A2j + A3k and B = B1i + B2j + B3k? | ||
| A. | A.B = A1B1 + A2B2 + A3B3 | ||
| B. | AxB = A1B1 + A2B2 + A3B3 | ||
| C. | A.B = A1B2 + A2B3 + A3B1 | ||
| D. | AxB = A1B2 + A2B3 + A3B1 | ||
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