Find all the roots of the given equation.x4 - 81 = 0
A. -3, -3j, 3, 3j
B. -3 - 3j, -3 + 3j, 3 - 3j, 3 + 3j
C. -3, 3
D. -3j, 3j
Answer: A
Mathematics
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, and bounded by the planes 
and 
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a. 6 mV b. 61 mV c. 2.1 V d. 2.9 V e. 3.8 V
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< 3
A. 
B. 
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Multiply, then simplify the product. If variables are present, assume they are positive.(
+ 6)(
+ 2)
A. x
+ 12
B. x
+ 
+ 12
C. x
+ 2
+ 6
+ 12
D. x
+ 12
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