Please give an elaborate,quick and easy answer to these questions....
1.How to identify whether a number is prime or composite?
2.How to add two root numbers?
3.Please show how to add
4.How to know whether to use H.C.F or L.C.M in a question? Please explain very clearly.

Asked by Anishma Joseph
| 8th Jul, 2014,
05:11: PM
Expert Answer:
Kindly post single question in a query and do not post multiple queries.
Answered by Vimala Ramamurthy
| 9th Jul, 2014,
09:12: AM
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