Question

3.
Find (x + y) + (x - y) if
(i) x=5/2, y=-3/4
(ii)x=1/4,y=3/2​

Answer 1

Answer:

Simple just substitute the values

Answer 2

Answer:

(I) (5/2-3/4) +(5/2-3/4)

(10-3/4) +(10-3/4)

7+7/4

7/2

(2) (1/4+3/2) +(1/4-3/2)

(1+6/4) +(1-6/4)

(7/4)+(-5/4)

7-5/4

1/2

I hope it help you