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please answer the following questions:

Asked by 11th January 2012, 11:24 AM
Answered by Expert
Answer:
pradeeps is a good reference book. for higher concepts, once you are through with pradeeps, refer h.c.verma.
zero vector is the resultant 0 vector only and thast is nul vector in other words.
modulus of a vector=under root( a2+b2+2abcos?)
Answered by Expert 11th January 2012, 12:26 PM
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