Given: WZYX, ZWZXZYXZ D
Prove: WXYZ
Statement
Reason
1. WZ-YX
1. Given
2. ZWZXZYXZ
2. Given
>
3. XZXZ
3. [Select]
4.Δ W ZXΔΥ XZ
4. [Select]
5. WXYZ
5. CPCTC

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.