Question

7
8. Verify that -(-x) = x, when x = (a)
(
b)
3
9. Verify that -(x + y) = (-x) + (-y), when
(a) x =
112
4)​

Answer 1

Answer:

x=a

= -(-a)

- - = +

= a

jab bhi do - aate h vo + ho jata h