Question

if x= -3/7 and y=-5/4, verify that, |x + y|=|x| + |y| and |x × y|=|x| × |y|​

Answer 1

Answer:

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Here is your answer

|x+y| = |x| + |y|

| -3 / 7+ -5 / 4 | = | -3 / 7 | + | -5 / 4 |

-12 + -35 / 28 = - 3 / 7 + -5 / 4

-47/28 = -47 /28

| x × y | = | x | × | y |

| -3 / 7 × -5 / 4 | = | -3 / 7| × | -5 / 4|

|15/28| = 15/28