Simplify the power of i to i, 1, -i or -1.
A. -1
B. i
C. 1
D. -i
Answer: D
Mathematics
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Fill in the blank(s) with the appropriate word(s).
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Provide an appropriate response.When assigning a value to merchandise, the specific identification method uses a(n)
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Solve the problem.Find the equation for the tangent plane to the surface 
at the point 
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Mathematics