请问这个怎么写哇？求解答

Question

Answer 1

from math import *
#1
a,b,c=1,2,1
x=(-b-sqrt(b*b-4*a*c))/(2*a)
print(x)

#2
x,y,a=1,1,1
z=(x*x+y*y)/(2*a*a)
print(z)

#3
x,y,z=1,1,1
w=(x+y+z)/sqrt(pow(x,3)+pow(y,3)+pow(z,3))
print(w)

#4
a,c,d=1,1,1
x=pow(3+a,2)/(2*c+4*d)
print(x)

#5
x,y=pi,0
z=2*sin((x+y)/2)*cos((x-y)/2)
print(z)

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