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3 years ago

Which of the following intervals represents the set (1,4) u [2,6]?

Mathematics

2 answers:

fenix001 [56]3 years ago

8 0

Set is a sum of two intervals :(1,4) u [2,6]
In the first interval it is open on both sides so 1 and 4 don't belong to this interval, the second is closed so both 2 and 6 belong to interval and numbers between 2 and 6
We can write it as 1<x $\leq 6$
summing both sets we have one set: (1,6]
so
a) represent our set
b) also represent because all numbers between 4-6 and 6 are in our set
c)also represent, all numbers are in main set
d)also represent

garri49 [273]3 years ago

4 0

$(1;\ 4)\ \cup\ [2;\ 6]=(1;\ 6]\\\\Answer:A.$

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