 16 . 24 1.3.5.7 6.7.9.11 9.11.13.15 to n terms by increments. to n terms. 21. If seven balls be drawn from a bag containing eleven in all, five of which are white and six black ; what is the probability that three white balls will be drawn?  New Series of The Mathematical Repository - Page 40by Thomas Leybourn - 1819Full view - About this book
 | University of Cambridge - 1818 - 360 pages
...terms by increments. ax + (a+0) + (a + 2 6) + &c. to n terms. 21. If seven balls be drawn from a bag containing eleven in all, five of which are white...drawn ? 22. Prove that the sum of all the numbers of я places, which cao be formed with the n digits a, é, с, &с. : sum of all the numbers of n places... | |
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...1.3.5.7 5.7.9.11 9.11.13.15 to n terms by increments. (a+b) #"+/3+(a + 2fe).ra+!!/3 + &c. to n terms. 32. Prove that the sum of all the numbers of n places,...of n places which can be formed with the n digits p, q, r, &c. of the same scale :: a + b + c + &c. : p + J + T + &C. 23. In a revolving fluid spheroid... | |
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...between x and у : the H. mean : : m : n, then x : y : : m + v'(m* - n1) : m - V(»** - пг). 97. Find the sum of all the numbers of n places which can be made with n digits pa, pv &c. in the scale of r. What is the greatest possible value of that sum for... | |
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...&c. to n terms by increments. ~rc 'fj r\ fi "T to n terms. &c. 21. If seven balls be drawn from a bag containing eleven in all, five of which are white and six black; what is the prohability that three white balls will he drawn? 22. Prove that the sum of nil the numbers of n places,... | |
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