Solve the equation in the complex number system.x4 - 4x2 - 5 = 0
A. {
, 5}
B. {- 
, 
, i, -i}
C. {
i, i}
D. {-
i, -i}
Answer: B
Mathematics
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Use L'Hospital's rule to find the limit.
A. 0
B. - 
C. 
D. ?
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Multiply or divide.-16 ÷ (-4)
A. 5 B. -4 C. 3 D. 4
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Graph the compound inequality.3x + y ? 3 or x - 4y ? 1
A. 
B. 
C. 
D. 
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 1
B. 
C. 
D. 
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