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expected grade boundries for As math p12

Sorry, I meant that CD was (8 4 -8), not OC.
- guest1234
- Post #103
- May 8, 2014
- Forum: A-Levels
G
expected grade boundries for As math p12

No, OD was (12, 9,-2). For CD, you had to consider the vector in the direction of BA, not AB. Hence, OC was (8 4 -8) and you add up OC and CD to get the position vector of OD.
- guest1234
- Post #101
- May 8, 2014
- Forum: A-Levels

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