A) Write 7.1 x 10² as an ordinary number.
2 answers:
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Recall Euler's theorem: if , then
where is Euler's totient function.
We have - in fact,
for any
since
and
share no common divisors - as well as
.
Now,
where the are positive integer coefficients from the binomial expansion. By Euler's theorem,
so that
1.) Distribute 4 to (3x) & (8): 
, 
2.) Rewrite the expression:
3.) Combine like terms:
4.) Rewrite the final expression:
Final Answer: <span>
Hope this helps!!
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2.) Rewrite the expression:
3.) Combine like terms:
4.) Rewrite the final expression:
Final Answer: <span>
Hope this helps!!
</span>