Answer:
[tex]\[x^{\frac{1}{4}}\][/tex]
Step-by-step explanation:
x is a variable which has been declared of type double.
Then square root of x can be expressed as [tex]\[\sqrt{x}\][/tex]
The quartic root of a number is the square root of its square root.
In other words, quartic root of x can be expressed as [tex]\[\sqrt{\sqrt{x}}\][/tex]
This can be expressed equivalently as [tex]\[\sqrt{x^{\frac{1}{2}}}\][/tex]
[tex]\[={x^{\frac{1}{4}}}\][/tex]
