Question

2. Verify that ( a + b ) + c = a + ( b + c), where :- (c) a = 7 upon - 11, b = - 2 upon 5 c = - 3 upon 22​

Answer 1

Answer:

$( a + b ) + c = a + ( b + c) \\ (\frac{7}{ - 11} + \frac{ - 2}{5} ) + \frac{ - 3}{22} = \frac{ 7}{ - 11 } + ( \frac{ - 2}{5} + \frac{ - 3}{22} ) \\ ( - \frac{7}{ 11} - \frac{ 2}{5} ) - \frac{ 3}{22} = - \frac{ 7}{ 11 } + ( - \frac{ 2}{5} - \frac{ 3}{22} )\\ ( \frac{ - 35 - 22}{55} ) - \frac{3}{22} = - \frac{7}{11} + ( \frac{ - 44 - 15}{110} ) \\ - \frac{57}{55} - \frac{3}{22} = - \frac{7}{11} - \frac{59}{110} \\ \frac{ - 1254 - 165}{1210} = \frac{ - 770 - 649}{1210} \\ - \frac{ 1419}{1210} = - \frac{ 1419}{1210} . \: hence \: verified$

Step-by-step explanation:

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