(2 + j13) + (6 - j8) =

a. 8 - j5
b. 8 + j5
c. 4 + j21
d. 4 - j21
e. 12 + j21

b. 8 + j5

Mathematics

Find all values that make the rational expression undefined. If the rational expression is defined for all real numbers, so state.

A. x = 0 B. x = -2 C. x = 2 D. Defined for all real numbers

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Mathematics

Find the integral.

A. + 2e^x + C
B. + 2xe^{x - 1} + C
C. 2 ln + 2e^x + C
D. 2 ln + 2xe^{x - 1} + C

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Mathematics

Use multiplication to check the answer. If an answer is incorrect, find the correct answer.

A. Correct B. Incorrect; should be 180 C. Incorrect; should be 179 R225 D. Incorrect; should be 179 R115

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Mathematics

Determine whether the ordered triple is a solution of the system.(-2, -1, 5)

A. Yes B. No

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Mathematics