Use De Moivre's theorem to evaluate the expression. Write the result in standard form.(2(cos 180° + i sin 180°))4
A. -16i
B. -16
C. 16i
D. 16
Answer: D
Mathematics
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Solve the problem.Find the linearization of f(x) = 7x at x = 0. Round coefficients to 2 decimal places.
A. y = 7x + 1 B. y = 1.95x C. y = 0.85x + 1 D. y = 1.95x + 1
Mathematics
Find the equation in standard form of the parabola described.The focus has coordinates (5, 0), and the vertex has coordinates (0, 0).
A. x2 = 20y B. y2 = 5x C. x2 = 5y D. y2 = 20x
Mathematics
Solve the equation for x.sin-1 
- cos-1 x = 0
A. {0}
B. 
C. 
D. ?
Mathematics
Solve the equation.x2 - x = 72
A. {1, 72} B. {8, 9} C. {-8, -9} D. {-8, 9}
Mathematics