Программа:
Python:
1) x = float(input('x = '))
y = (5 * x*x - 4) / (7*x + 2)
2) z = float(input('z = '))
a = float(input('a = '))
L = z + 2 * a
3) b = float(input('b = '))
c = float(input('c = '))
a = pow((b + c)/5*b*c, 1/2) - (b*b) / (2*c)
4) from math import sin, cos
x = float(input('x = '))
y = sin(x/2)**2 - cos(2*x)
