Perform the operation and write the result in the standard form.(4 - 4i)(5 + 9i)
A. 56 - 16i
B. -36i2 + 16i + 20
C. 56 + 16i
D. -16 - 56i
Answer: C
Mathematics
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What will be an ideal response?
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Find the first term and the common ratio of the geometric sequence.-7, 7, -7, 7, -7, . . .
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Mathematics