9. Verify that I x + y l = | x l + l y l by taking x = 1/2 and y = -1/4
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Answer:
fals
Step-by-step explanation:
|X+y|=|x|+|y|
|(2/4)-(1/4)|
1/4
|x|+|y|=2/4)+(1/4
3/4
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