Exponents are shorthand for repeated multiplication of the same thing by itself.
http://www.chacha.com/question/whydowehaveexpo...

gand marao hai answer iska randi ki nasal answer by sullar(lara)
http://wiki.answers.com/Q/Why_we_use_biased_repres...

8 is 2 cubed, so we have. 2^n * (2^3)n + 1) for the top and (2^4)n for the bottom. Next we multiply exponents. 2^n * 2^3n + 3) for the top and 2^4n for the bottom. Next we add exponents
http://answers.yahoo.com/question/index?qid=201204...

Hi, You have a key labeled [Y to the x], use it for all the powers or roots that do not have a dedicated key or key sequence. Let the key be [^] Ex: 13.675 to the power 1.33 is entered
http://www.fixya.com/support/t3488011decimals_in_...
