Simplify the power of i.
A. 1
B. i
C. -i
D. -1
Answer: D
Mathematics
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Find all values of ? in [0°, 360°) that satisfy the equation.
tan 
= -1
A. {300°} B. {150°} C. {330°} D. {120°}
Mathematics
Determine the direction angle for the vector. Round to the nearest tenth of a degree.v = -12i + 5j
A. 157.4° B. 22.6° C. none of these D. 112.6°
Mathematics
Solve the rational equation.
+ 
= 
A. {0} B. {45} C. {72} D. {360}
Mathematics
Find the average rate of change for the function between the given values.f(x) = 
; from 1 to 4
A. 
B. - 
C. -28
D. -2
Mathematics