No, 1^x = 1 for all real x. The 10^-5 is from the decimal point being moved 5 squares to the left from 1.0. Since we use base 10 this corresponds to 10^-5
The exponent on
went when I took the square root of the right hand side, using the rule
and
.
Since I skipped a few steps I'll explain in more detail :]
Using the first rule above:
Note that:
Using the second rule I can cancel out the
and
Recombining the square roots I have left using the first rule I get
The last step I did was rationalising the denominator - sometimes it's optional, sometimes not - depends what you covered in class. Since
This can be multiplied by
to give
Using the rule at the top I can combine the numerators to give