Find all solutions of the equation. Leave answers in trigonometric form.x2 - 36 = 0
A. {6
cis 235°, 6
cis 135°}
B. {6 cis 180°, 6 cis 0°}
C. {6
cis 45°, 6
cis 225°}
D. {6 cis 90°, 6 cis 270°}
Answer: B
Mathematics
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Factor completely.x7 + 7x6 + 10x5
A. x5(x - 5)(x + 2) B. x5(x + 5)(x - 2) C. x5(x + 5)(x + 2) D. x5(x2 + 7x + 10)
Mathematics
The matrix is the final matrix form for a system of two linear equations in variables x1 and x2. Write the Solution of the system.
A. x1 = 3 x2 = 5 B. x1 = -5 x2 = -3 C. x1 = 5 x2 = t for any real number t D. x1 = 5 x2 = 3
Mathematics
Multiply. Express the answer as a single polynomial in standard form.(9x - 1)(x2 - 5x + 1)
A. 9x3 + 46x2 - 14x + 1 B. 9x3 - 46x2 + 14x - 1 C. 9x3 - 44x2 + 4x - 1 D. 9x3 - 45x2 + 9x + 1
Mathematics
Differentiate.y = 4ex2
A. 8xe B. 8xe4x2 C. 8xe2x D. 8xex2
Mathematics