# Créé par shemon, le 06/10/2022 en Python 3.7
from math import*
def mystere(a,b):
    s=a+b
    t=s/2
    c=t**2
    return(c)
print("mystere(2,3)=",mystere(2,3))
print("mystere(10,1)=",mystere(10,1))
print("mystere(-5,17)=",mystere(-5,17))

def f(x):
    num=(sqrt(x**2+3)-x)
    denom=(2+abs(x))
    y=num/denom
    return(y)
print("f(0)=",f(0))
print("f(1)=",f(1))
print("f(3)=",f(3))
print("f(1/4)=",f(1/4))
print("f(sqrt(5))=",f(sqrt(5)))
print("f(pi)=",f(pi))
print("f(e)=",f(e))
print("f(-sqrt(2))=",f(-sqrt(2)))
z=(2-sqrt(3))/5
print("f((2-sqrt(3))/5)=",f(z))
print("f(100)=",f(100))