364⋅9040⋅67=?
First we'll use the fact that raising any number to the power of 0 gives the result 1, mathematically:
We'll apply this to both the numerator and denominator of the fraction in the problem:
Next we'll note that -36 is a power of the number 6:
And we'll use this fact in the denominator to get expressions with identical bases in both the numerator and denominator:
Now we'll recall the power rule for power of a power to simplify the expression in the denominator:
And we'll also recall the power rule for division between terms with identical bases:
We'll apply these two rules to the expression we got above:
Where in the first stage we applied the first rule we mentioned earlier - the power of a power rule and simplified the expression in the exponent of the denominator term, then in the next stage we applied the second power rule mentioned before - the division rule for terms with identical bases, and again simplified the expression in the resulting exponent,
Finally we'll use the power rule for negative exponents:
And we'll apply it to the expression we got:
Let's summarize everything we did, we got that:
Therefore the correct answer is A.