11. If p = -4/9 q = 2/3
and r = -8/11
then verify the following:
(i) p + (q + r) = (p + q) +
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Step-by-step explanation:
= -4/9+(2/3-8/11) = (-4/9+2/3) + -8/11
= -44+66-72/99 = -44+66-72/99
= 50/99 = 50/99
= L.H.S = R.H.S
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