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CBSE Class 11-science Answered

Find Value of n: 22^55-55^22=7n ?
Asked by thebluebloo | 24 Jan, 2009, 06:54: AM
answered-by-expert Expert Answer

n=(22^55-55^22) mod 7 

22^55=(7*3+1)55 =1+55C1 21+...

55^22=(7*8-1)55 =11-55C1 56-....

2255-5522  = 55C1 35+..

Clearly:

2255-5522  mod 7 =0

 

Answered by | 15 Jun, 2009, 01:01: AM
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