Rela numbers!!?

Question

Please answer these questions! Thankyou!

His text gives the exponential form for both questions. But want to know the Radical and the Standard form for both questions.

a.) 16 1/2

b.) 4 -3/2 (The minus sign is in front of the whole fraction, not just the three.)

Answer 1

16^(1/2) = sqrt(16) = 4

4^(-3/2) = 4^(2/3) = 16^(1/3)
The cube root of 16 is not a rational number. Write it using the square root sign, but with a little 3 between the diagonal and the box.