Question 242644
sqrt(a) * sqrt(a) = sqrt(a)^2 = a


sqrt(13z) * sqrt(13z) = 13z


square root of any number squared is equal to the number.


sqrt(a) is equivalent to a^(1/2)


a^(1/2) * a^(1/2) = a^(1/2 + 1/2) = a^1 = a


same thing in exponent notation form.