let f(×)=√×. is f(3+1)=f(3)+f(1)?

Question

To know how to solve

Answer 1

f(x)=√×

Calculate the value of f(3).

f(3)=√3

Calculate the value of f(1).

f(1)=√1=1

Calculate the value of f(3+1).

f(3+1)=√3+1=2

f(3)+f(1)=√3+1

f(3+1) is not equal to f(3)+f(1)