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Pre-Calc Homework Solutions 464

# Pre-Calc Homework Solutions 464 - 464 Appendix A5.3 10 3x 2...

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27. continued From the preliminary result in Exercise 26, tan a 5 5 5 5 } y b 0 2 c } . In a similar manner, tan b 5 5 } y b 0 2 c } . Since tan a 5 tan b , and a and b are acute angles, we have a 5 b . 28. The tangent to the ellipse of P bisects / APC, and the tangent to the hyperbola at P bisects / APB . Since / APC and / APB are a linear pair, so that m / APC 1 m / APB 5 180 8 and } m / 2 APC } 1 } m / L 2 APB } 5 90 8 , the tangents to the ellipse and hyperbola are perpendicular. Appendix A5.3 (pp. 612–618) 1. x 2 2 3 xy 1 y 2 2 x 5 0 B 2 2 4 AC 5 ( 2 3) 2 2 4(1)(1) 5 5 . 0 Hyperbola 2. 3 x 2 2 18 xy 1 27 y 2 2 5 x 1 7 y 5 2 4 B 2 2 4 AC 5 ( 2 18) 2 2 4(3)(27) 5 0 Parabola 3. 3 x 2 2 7 xy 1 ˇ 1 w 7 w y 2 5 1 B 2 2 4 AC 5 ( 2 7) 2 2 4(3) ˇ 1 w 7 w < 2 0.477 , 0 Ellipse 4. 2 x 2 2 ˇ 1 w 5 w xy 1 2 y 2 1 x 1 y 5 0 B 2 2 4 AC 5 ( 2 ˇ 1 w 5 w ) 2 2 4(2)(2) 5 2 1 , 0 Ellipse 5. x 2 1 2 xy 1 y 2 1 2 x 2 y 1 2 5 0 B 2 2 4 AC 5 2 2 2 4(1)(1) 5 0 Parabola 6. 2 x 2 2 y 2 1 4 xy 2 2 x 1 3 y 5 6 B 2 2 4 AC 5 4 2 2 4(2)( 2 1) 5 24 . 0 Hyperbola 7. x 2 1 4
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• Spring '08
• GERMAN
• High-Level Data Link Control, Videojuego de construcción de imperios, Norma X.25, Appendix A5.3, LAPB 2, APC 2

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