Question

4. Verify that (a + b) + c = a + (b +c) by taking
a= –2/3,b=5/6,c= -5/8​

Answer 1

Answer:

(a + b) + c = a + (b + c)

=> (- 2/3 + 5/6) - 5/8 = - 2/3 + (5/6 - 5/8)

=> (- 4 + 5)/6 - 5/8 = - 2/3 + (20 - 15)/24

=> 1/6 - 5/8 = - 2/3 + 5/24

=> (4 - 15)/24 = (- 16 + 5)/24

=> -11/24 = -11/24 (Proved)