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Question

Verify that |x+y||x|+|y| when (i) x=3&y=79, (ii) x=0.8&y=79

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Solution

|x+y||x|+|y| ..... (1)
(i) x=3 and y=79
Now,
|x+y|=379=349

|x|=3 and |y|=79

|x|+|y|=3+79=349
Therefore verified.
(ii) x=0.8=45 and y=79
Now,
|x+y|=4579=145
|x|=45 and |y|=79
|x|+|y|=45+79=7145
Therefore verified.

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