Write the complex number in rectangular form.13.89(cos 4° + i sin 4°)

A. 13.9 + 1i
B. -3.7 - 0.3i
C. 1 + 13.9i
D. 3.7 + 0.3i


Answer: A

Mathematics

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A.  = x + 9
B.  = x - 5
C.  = x + 5
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A.  
B.  
C.
D.  

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Perform the indicated operations and simplify. -  + 

A.  
B.  
C. - 
D. - 

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