Question

9. Verify that -(x + y) = (-x) + (-y), when (a) x = 3/4, y = 6/7 (b) x=-3/4, y=-6/7​

Answer 1

Answer:

A. -(3/4+6/7)=(-3/4)+(-6/7)

   remove the brackets

   -3/4+6/7=-3/4-6/7

   now do L.C.M for the denominators.

   you will get 28.

   -21/28+24/28=-21/28-24/28

   23/28 is not equal to -45/28

hope it helps..