The other 2 angles are acute and obtuse; an acute angle is less than a right angle, and an obtuse angle is greater that a right angle. By the way, a right angle is equal to 90°.
Answer:
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Step-by-step explanation:
Let
. Then
. By convention, every non-zero integer
divides 0, so
.
Suppose this relation holds for
, i.e.
. We then hope to show it must also hold for
.
You have
We assumed that
, and it's clear that
because
is a multiple of 3. This means the remainder upon divides
must be 0, and therefore the relation holds for
. This proves the statement.
Domain {-4,-2,0,2,4}
Range {-1,1,3,0}