Question

Determine x+y e x-y.
x = 3/√2
y= 2/√7

Answer 1

Determine x+y e x-y.

x = 3/√2

y= 2/√7

x+y=

3/√2 + 2/√7=

3.1,4 + 2.2,6=

4,2 + 5,2 =

9,4

x-y=

3/√2 - 2/√7=

3.1,4 - 2.2,6=

4,2 - 5,2=

-1