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" The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. "
Manual of mathematical tables, by J.A. Galbraith and S. Haughton - Página viii
por Joseph Allen Galbraith - 1860
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An Introduction to Statistical Analysis

George Gailey Chambers - 1925 - 257 páginas
...the construction of such a scale, we should recall that the logarithm of the product of two or more numbers is equal to the sum of the logarithms of the numbers from which the product was formed; for example: log 4 = log 2 + log 2, or 2 log 2 log 6 = log 2 + log...
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Bulletin, Temas1-11

1909
...question from each of the groups A, B, C. A. 1. (a) Logi 64=3: find the value of a. (6) Prove that the logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. 2. Prove the identity (sin 0+cos 8) (tan 0+cot 6) =sec 0+cosec 0 3. Show that sin (—390° ) +siu...
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The Slide Rule: A Study Guide to be Used with USAFI Course C858

Warren Clarence Young - 1962 - 91 páginas
...expressed, it is understood to be 10. Pages 60-64. The first property of logarithms given above states that the logarithm of the product of two numbers is equal to the sum of the logarithms of the two numbers. If you read these pages carefully, you will see that when you multiply two numbers using...
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Fluid, Electrolyte, and Acid-base Regulation

Jack L. Keyes - 1990 - 239 páginas
...the Henderson equation. First, take the logarithm of both sides of Equation 5-12, (5-13) J The log of the product of two numbers is equal to the sum of the logarithms of the two numbers, hence, (5-14) •[B-] " [B-] Substituting Equation 5-14 into 5-13, , L*"^J /C 1 C "\ multiplying...
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Community Analysis and Planning Techniques

Richard E. Klosterman - 1990 - 262 páginas
...following laws of logarithms can be applied to the logarithms of products, ratios, and exponents: 1 . The logarithm of the product of two numbers is equal to the sum of their logarithms: log (ab) = log a + log b For example, log (10 x 100) = log (10) + log (100) log (1,000)...
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Principles and Applications of Mathematics for Communications-electronics

1992
...of the positive logarithm. 12.8686—10 3.7980—10 9.0706 121. Multiplication by Use of Logarithms The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. Thus, log (2 x 6) = log 2 + log 6; and log (12 X 8) = log 12 + log 8. Example 1 : Multiply 68.2 by...
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Pass school, group A (-D).

Oxford univ, exam. papers, 2nd publ. exam - 1884
...of a right-angled triangle, in which the perpendicular is 127 and the hypotenuse 325. 9. Prove that the logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers themselves. Find A, when 10 tan A = 7 sin 15° 30'. 10. In the triangle ABC, if B = 57° 45', C = 105°...
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A Textbook of Biotechnology Vol-II

Rehana Khan - 2007 - 315 páginas
...substitute for the term "index", the laws of logarithms can be easily deduced from the laws of indices. /. Logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers to quantities, Le.. Proof. Let loga m = x so that of = m ...(I) and loga n = y so that c^ = n ...(2)...
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Isc Business Mathematics

...always positive and not equal to one. 4.2. Laws of logarithm (i) logu (mx /i) = logam + log,/! ie, the logarithm of the product of two numbers is equal to the sum of their logarithms. Proof : Let logam = x and loga/i = у :. a? = m ... (1) and a? = n ... (2). Multiplying...
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