Solve the following exercise:
Solve the following exercise:
Write the problem in an organized way using fraction notation for the first term:
Let's continue and refer to the first term in the above sum:
Begin with the numerator, using the law of exponents for multiplying terms with identical bases:
and we obtain the following:
Now proceed to use the law of exponents for the division between terms with identical bases:
When in the first stage of the above formula we just wrote the same thing in fraction notation instead of using division (:), let's apply the law of exponents to the problem and calculate the result for the first term that we obtained above:
Proceed to apply the law of exponents:
Note that this rule is actually just the understanding that dividing a number by itself will always give the result 1. Let's return to the problem and we obtain the result of the first term in the exercise (meaning - the result of calculating the fraction) is:
,
Let's return to the complete exercise and summarize everything said so far as follows: