The book Unified Mathematics was written by author Karpinski Louis Charles Here you can read free online of Unified Mathematics book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Unified Mathematics a good or bad book?
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Illustration. (z-3) 2 (y + 2) 2, (z-3) 2 (y + 2) 2 '- = 1 and * 4 = 1 are con- 16 49 16 49 jugate hyperbolas ; the second is written in standard form **-~ i L^ '- = 1, wherein the focal distances ae from 49 16 the center, and the distances - of the directrices from the e center (3, 2) are obtained, regarding o 2 as 49 and i 2 as 16. The asymptotes of these conjugate hyperbolas are given by the equation i - isLJI L = 0, or by the equivalent in JLO ^rt/ separate factors, 7 fy> /A2 (y fc\2 The equ...ation ^ * *t '- = 0, representing two real straight lines, is a limiting form of the hyperbola equation, (x - h) 2 (y + fc) 2 b -t- = m. Asm approaches zero, - remains con- a 2 b 2 a stant and the hyperbola approaches more and more nearly the L. T x h 11 k n j x h . Y k n two straight lines = and 1- * : = 0. THE HYPERBOLA 329 9. The equilateral or rectangu- lar hyperbola. The hyperbola 22 y2 - = 1 is called an equilat- a 2 a 2 eral hyperbola since b = a ; it is also called a rectangular hyper- bola as the asymptotes are at right angles to each other.
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