Answers

2014-06-09T15:37:41+05:30
INDICES ARE ALSO CALLED EXPONENTS:
2^2 = 2*2 = 4
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2014-06-10T00:37:36+05:30
Indices are basically the way in which we represent that a number is being multiplied 
by itself how many times...for eg-2^2 represent that two is being multiplied to 2 two times....2*2...and so on..
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