?Find the radius of convergence centered at 
for the following function.
?
?
A. ?4
B. ?2
C. ?0
D. ?1
E. ?
Answer: D
Mathematics
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Change the complex number to rectangular form.
cos 270°
A. 2.646 + 0j B. -2.646 + 0j C. 0 - 2.646j D. 0 + 2.646j
Mathematics
Find the distance on the number line between the pair of numbers.
, - 
A. 
B. 
C. 
D. 
Mathematics
Decide whether or not the function is continuous in the indicated x-interval.-3 to 0
A. Continuous B. Not continuous
Mathematics
Solve the equation on the interval [0, 2?).tan x + sec x = 1
A. 
B. 0
C. 
D. No solution
Mathematics