Write the sum or difference in the standard form a + bi.(5 + 8i) - (-4 + i)
A. 9 - 7i
B. -9 - 7i
C. 9 + 7i
D. 1 + 9i
Answer: C
Mathematics
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A. - 10
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A. A = 345 cm2 B. A = 45 cm2 C. A = 161 cm2 D. A = 225 cm2
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A. - 
B. 
C. - 
D. 
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Simplify the exponential expression.
A. 
B. 
C. 
D. x11
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