Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.1 - 
i
A. 4(cos 330° + i sin 330°)
B. 2(cos 330° + i sin 330°)
C. 4(cos 300° + i sin 300°)
D. 2(cos 300° + i sin 300°)
Answer: D
Mathematics
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Write a chain rule formula for the following derivative.
for w = f(p, q, r); p = g(t), q = h(t), r = k(t)
A. 
= 
+ 
+ 
B. 
= 
+ 
+ 
C. 
= 
+ 
+ 
D. 
= 
+ 
+ 
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Rewrite the expression in terms of exponentials and simplify the results.sinh (7 ln x)
A. 2x
B. 
C. 
D. 
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Find a formula for the sum of the first n terms of the sequence 9, 21, 36, 54, 75,….
a. 
b. 
c. 
d. 
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Simplify the expression by combining like terms.6b - 4b + 2
A. 10b + 2 B. 2b + 2 C. -2b + 2 D. 4b
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