Find the product or quotient, using trigonometric form. Write the answer in the form a + bi.
A. - 
- 
i
B. 
- 
i
C. - 
- 
i
D. 
- 
i
Answer: B
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Let f be the function defined by 
. Find 
, 
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, 
, and 
.
What will be an ideal response?
Evaluate the function for the given values of a and b. Then use the intermediate value theorem to determine which of the statements below is true.a = 2, b = 3f(x) = x3 + 5x2 + 12x + 8
A. f(2) and f(3) have the same sign, therefore f does not have a real zero between 2 and 3. B. f(2) and f(3) have the same sign, therefore the intermediate value theorem cannot be used to determine whether f has a real zero between 2 and 3. C. f(2) and f(3) have opposite signs, therefore f has a real zero between 2 and 3. D. f(2) and f(3) have opposite signs, therefore f does not have a real zero between 2 and 3.
Solve the problem.John owns a hotdog stand. He has found that his profit is represented by the equation 
with P being profits and x the number of hotdogs. How many hotdogs must he sell to earn the most profit?
A. 50 hotdogs B. 28 hotdogs C. 27 hotdogs D. 25 hotdogs
Evaluate the expression without using a calculator.-321/5
A. 32 B. -2 C. -8 D. 16