PARALLELOGRAM'S LAW OF VECTOR ADDITION

coplanar for 1 ) all except two values of ? 2) all except one value of ? 3) forall values of? 4) no value of? 12. TRIANGLE AND PARALLELOGRAM LAW, VECTOR ADDITION: 7. The value of 'a', for which the points A, B, C with position vectors 27-j+k, i-3j -5k and ai -37+k are the vertices of a right angled triangle with C are [AIE-2006] |13 1)-2 and 1 3) 2 and 1 2) 2 and -1 4)-2 and -1 SCALAR MULTIPLICATION AND 14. THEIR PROPERTIES Let A and B be points with position vectors a and b with respect to origin O. If the point C' on OA is such that 2AC CO, CD Is parallel to OB and CD 3OB then AD is parallel to OB and 0-3|OR then AD is 3 1) b 3 2) a A 158

coplanar for 1 ) all except two values of ? 2) all except one value of ? 3) forall values of? 4) no value of? 12. TRIANGLE AND PARALLELOGRAM LAW, VECTOR ADDITION: 7. The value of 'a', for which the points A, B, C with position vectors 27-j+k, i-3j -5k and ai -37+k are the vertices of a right angled triangle with C are [AIE-2006] |13 1)-2 and 1 3) 2 and 1 2) 2 and -1 4)-2 and -1 SCALAR MULTIPLICATION AND 14. THEIR PROPERTIES Let A and B be points with position vectors a and b with respect to origin O. If the point C' on OA is such that 2AC CO, CD Is parallel to OB and CD 3OB then AD is parallel to OB and 0-3|OR then AD is 3 1) b 3 2) a A 158

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