Three consecutive integers have a sum of -21. Which equation can be used to find the value of the three numbers?
1 answer:
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a. The events are mutually exclusive, so
b. For the same reason,
Another way to see this is to use the result from part (a), and the inclusion/exclusion principle:
and the right side reduces to 0.
c. Same as (b),
d. Same as (b),
We can also use the distributivity rule for unions and intersections to write
e. If the is the complement of
, then by DeMorgan's law,
Answer:
and
are two such planes.
Step-by-step explanation:
To find the two planes whose intersection is the line
You can say that <em>t</em> is equal to this expression
Next,
Then,
and
are two such planes.
You can see in the image attached that the intersection of this planes is the line
