Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).-2i
A. 2(cos 270° + i sin 270°)
B. 2(cos 90° + i sin 90°)
C. 2(cos 0° + i sin 0°)
D. 2(cos 180° + i sin 180°)
Answer: A
Mathematics
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Find all points where the function is discontinuous.
A. None B. x = 4 C. x = 4, x = 2 D. x = 2
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Write the equation in logarithmic form.63 = 216
A. log63 = 216 B. log2166 = 3 C. log6216 = 3 D. log3216 = 6
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Subtract.60,000 - 41,979
A. 18,021 B. 91,979 C. 21,979 D. 102,461
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Use factoring to solve the equation.3x2 - 23x = 8
A. -3, 8
B. - 
, 8
C. - 
, 3
D. - 
, -3
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