The sequence is: cos(π/2), cos (π ), cos (3π/2), cos ( 2π ),...
or: 0,-1,0,1,0,-1,0,1,... Since cos (nπ/2) oscillates between -1 and 1 as n tends to infinity, this sequence is divergent (limit does not exist).
According to the markings, BD = DC. From this fact
BD = DC
BD + DC = BC
18 + 18 = BC
BC = 36 <<<<<< Answer
Answer:
<h3>a. Give an example for which Arial's claim is true.</h3>
If linear relations have equal coefficient about the independent variable, then those linear relations are parallel. For example,
and
.
Notice that the coefficient of the dependent variable must be also equal, otherwise it would change the slope of the expression and they wouldn't be parallel.
<h3>b. Give an example for which Arial's claim is false.
</h3>
The statement is not false.
<h3>c. Suggest an improvement to Arial's claim.</h3>
An improvemente would be that the constant term no need to be equal too, between linear relations, because they can be at "differecent heights", sort of speak.
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