Find 
. Write the answer in polar form with the argument between 0° and 360°z1 = 1 - i, z2 = 1 - 
i
A. 
(cos 15° + i sin 15°)
B. 
(cos 75° + i sin 75°)
C. 
(cos 75° + i sin 75°)
D. 
(cos 15° + i sin 15°)
Answer: D
Mathematics
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Find all the local maxima, local minima, and saddle points of the function.
A. f
= 
, local minimum
B. f
= 
, local minimum
C. f(30, 30) = 297,000, local maximum
D. f(0, 0) = 0, saddle point
Mathematics
Provide an appropriate response. If you multiply 4 ft times 5 ft the result is 20 square feet. This is a measure of area. If you multiply 4 ft times 5 ft times 2 ft, explain what type of measure results.
What will be an ideal response?
Mathematics
Simplify.(7x2 - 8x - 4) + (6x2 - 8x + 7)
A. 13x2 - 8x + 3 B. 42x2 - 8x + 3 C. 13x2 - 16x + 3 D. 13x4 - 16x2 + 3
Mathematics
Simplify.
A. -(x + 4) B. -(x - 4) C. 4x(x + 4) D. x + 4
Mathematics