What is the sum of the digits in the standard representation of 11^7?
I'm confused by what standard representation means. -.-"
I'm confused by what standard representation means. -.-"
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its just asking what is the sum to all the digits in the answer to 11^7.
11^7 = 19487171
add them all together and you get 38
11^7 = 19487171
add them all together and you get 38
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I have never encountered this kind of problems before, but I believe by the standard representation they mean the expansion of 11^7. ie;
the standard representation of 11^2 is 121, therefore the sum is 1+2+1 = 4
11^3 = 1331, sum: 8.
11^4 = 14641, sum: 16.
...
So if I'm not mistaken, the pattern for this sum (Sn) of 11^n is
Sn = 2^n.
Therefore to your particular problem, Sn= 2^7
Ha, just figured out the solution on the spot!
the standard representation of 11^2 is 121, therefore the sum is 1+2+1 = 4
11^3 = 1331, sum: 8.
11^4 = 14641, sum: 16.
...
So if I'm not mistaken, the pattern for this sum (Sn) of 11^n is
Sn = 2^n.
Therefore to your particular problem, Sn= 2^7
Ha, just figured out the solution on the spot!