2. David determines that 3 sqrt 2 cis(7pi/4) = -3+3i. When he considers the graphical representation of these numbers, he knows
he made an error. Clearly explain in complete sentences what David observed, and where David made his mistake. State the correct rectangular equivalence of 3 sqrt 2 cis(7pi/4).
1 answer:
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Answer:
3) ,
, or
(same thing)
4) or
(same thing)
5) or
(same thing)
Step-by-step explanation:
3) Domain represents the amount of -values in a function. The image shows that the function's arrows point in both directions (right and left), infinitely, so the domain would be
,
, or
(same thing).
4) Range represents the amount of -values in a function. The function goes downward forever (
) by the indication of an arrow and halts just under the y-axis (
). After combining these two inequalities, you see that the range is
or
(same thing).
5) The -intercept is where the function crosses the
-axis. In this function, the
-intercept is
or
(same thing).