UGC NET CSE | December 2013 | Part 3 | Question: 62

Question

Which of the following statements is (are) true?

1. Two successive translations are additive
2. Two successive relations are additive
3. Two successive scaling operations are multiplicative
   • A. I and II
   • B. I and III
   • C. II and III
   • D. All of the above

Answer 1

ans is D

statement II should be Two successive rotations are additive

i)  since translation are just addition by translating vector or displacement hence it is additive

ii)  since rotation are done with some angles so  Two successive rotations are additive (angles will be added or subtracted)

iii)scaling is done by multiplying by scaling vector so every scaling will be multiplicative