39. sin /30Ad\ /l -cos(30Ad) VT-J = V 2 = Ail-V3/2 2_ h-y/H \Ai2-y/3 V 2 aquot; 2 V 4 ~ 2 or by using a difference a formula one finds sin (15Ad) = sin (60Ad - 45Ad) = V - V 41. cos(2? r/3 - 7t/4) = cos(27t/3) cos(7t/4) + sin(27r/3) sin(7r/4) = 1 y/2 V3 V2 V6-V2 2 a#39; 2 +anbsp;...

Title | : | Student's solutions manual to accompany Fundamentals of precalculus |

Author | : | Edgar N. Reyes, Mark Dugopolski |

Publisher | : | Addison Wesley Longman - 2004 |

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