Answer:
b
Step-by-step explanation:
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With every imaginary term, there are 2 complex conjugates with opposing signs. So if I had the term a+bi, the complex conjugate would be a-bi. So given your example of -1+4i, the complex conjugate would just be the opposite sign, now negative, to get -1-4i.
Step-by-step explanation:
A = pi × r²
A = pi × 13²
A = 530.93 km²
