Question

Oblicz:

a) -2 - 1 = ?

b) -2 - 7 = ?

c) 2 i 1/2 - 3 = ?

d) -2 i 1/2 - 3 = ?

Answer 1

a) -2 - 1 = ? -3

b) -2 - 7 = ? -9

c) 2 i 1/2 - 3 = ? - 1/2

d) -2 i 1/2 - 3 = ? -5 i 1/2

 

Answer 2

a) -3

b)-9

c)-1/2

d)-4 1/2