Write the complex number in the form a + bi.4(cos -135° + i sin -135°)
A. - +
i
B. -2 - 2
i
C. - -
i
D. -2 + 2
i
Answer: B
Mathematics
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Write the expression as a sum, difference, or multiple of logarithms. Part of the logarithm may be determined exactly.log10(80)4
A. 4log108 + 4 B. log108 + 4 C. 4log108 + 3 D. 4log108 + 5
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Multiply.(-5x + 5)(-2x + 12)
A. 10x2 - 70x + 60 B. -7x2 - 70x + 60 C. -7x2 - 70x - 70 D. 10x2 - 70x - 70
Mathematics
Multiply.8.857 × 10
A. 885.7 B. 0.8857 C. 88.57 D. 8.8570
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Perform the indicated operation.3.12 - 1.242
A. 4.362 B. 1.878 C. 5.362 D. 1.978
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