Answer:
[tex]2[/tex]
Step-by-step explanation:
[tex]4=2^2[/tex]
[tex]\left(2^2\right)^{\frac{1}{2}}[/tex]
[tex]\left(2^2\right)^{\frac{1}{2}}=2^{2\cdot \frac{1}{2}}[/tex]
[tex]2^{2\cdot \frac{1}{2}}=2[/tex]
