Find the foci of the ellipse. +  = 1

A. (3 + 3, 1), (3 - 3, 1)
B. (- 3, 1), (3, 1)
C. (-3, 1), (9, 1)
D. (3, 1+ 3), (3, 1 - 3)


Answer: A

Mathematics

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Convert the series circuit having R = 3.3 Kê, L = 100 mH, and f = 4 KHz to an equivalent parallel circuit.

a. Y = 146.4 æS - j330 æS b. Y = 193 æS - j146.4 æS c. Y = 251 æS - j17.14 æS d. Y = 330 æS - j251 æS e. Y = 198 æS - j17.14 æS

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A. 23.5 B. 27 C. 27.5 D. 28

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Express as a difference of logarithms.log b 

A. log b 4 - log b w B. log b - log w C. log b w - log b 4 D. log b 4 ÷ log b w

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