A Mathematical Solution Book Containing Systematic Solutions to Many of the Most Difficult Problems: Taken from the Leading Authors on Arithmetic and Algebra, Many Problems and Solutions from Geometry, Trigonometry and Calculus, Many Problems and Solutions from the Leading Mathematical Journals of the United States, and Many Original Problems and SolutionsKibler, 1888 - 481 σελίδες |
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Σελίδα 23
... difference be- tween two numbers . 2. Subtract the following and prove the result by casting out the 9's : 984895 excess of 9's = 7 9's - 1 795943 66 188952 66 " 9's = 6 ) Excess of 9's = 7 . Explanation . - Adding the digits in the ...
... difference be- tween two numbers . 2. Subtract the following and prove the result by casting out the 9's : 984895 excess of 9's = 7 9's - 1 795943 66 188952 66 " 9's = 6 ) Excess of 9's = 7 . Explanation . - Adding the digits in the ...
Σελίδα 30
... difference is 11 days ; whence , if a new ' moon fall on the first of January in any year , the moon will be 11 days old on the first day of the following year , and 22 days on the first of the third year . The epact of these years are ...
... difference is 11 days ; whence , if a new ' moon fall on the first of January in any year , the moon will be 11 days old on the first day of the following year , and 22 days on the first of the third year . The epact of these years are ...
Σελίδα 33
... difference of time between two places , we can easily find the difference of longitude . For example , the difference of time between New York City and St. Louis is 1 hr . 4 min . 47 sec . Find the difference of longitude . 1. 1 hr . 2 ...
... difference of time between two places , we can easily find the difference of longitude . For example , the difference of time between New York City and St. Louis is 1 hr . 4 min . 47 sec . Find the difference of longitude . 1. 1 hr . 2 ...
Σελίδα 34
... difference of longitude between the two places . Conceive yourself located at the place whose longitude is given . Then ask yourself this question , Is the place whose longitude is required , east or west ? If west , add the difference ...
... difference of longitude between the two places . Conceive yourself located at the place whose longitude is given . Then ask yourself this question , Is the place whose longitude is required , east or west ? If west , add the difference ...
Σελίδα 36
... difference of time between places immediately east and immediately west of the line is therefore 24 hours , and just west of the line it is one day later than just east of it . This is made still clearer by considering what takes place ...
... difference of time between places immediately east and immediately west of the line is therefore 24 hours , and just west of the line it is one day later than just east of it . This is made still clearer by considering what takes place ...
Συχνά εμφανιζόμενοι όροι και φράσεις
acres Algebra altitude amount annuity axis Benjamin Peirce cents chord circle circumference cone convex surface cost cows cube cubic curve cycloid cylinder Descartes diagonal diameter discount distance divided ellipse equal equation feet find the area find the length find the volume formula fraction frustum gain Geometry given hand moves past Hence horse hour hand hyperbola inches interest investment latus rectum linear side longitude lower base mathematicians mathematics method minute hand multiply nine-point circle o'clock orthocenter par value parabola parallel Peirce perpendicular plane polygon prismatoid Prob problem Professor proposition quotient radius ratio right angles rods Rule.-Multiply segment selling price senary similar triangles slant height sold solid solution sphere spherical square root straight line subtract Sylvester tangent theorem tion triangle Whence width yards
Δημοφιλή αποσπάσματα
Σελίδα 378 - If a straight line meet two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...
Σελίδα 24 - Multiplication is the process of taking one number as many times as there are units in another.
Σελίδα 410 - Two triangles which have an angle of the one equal to an angle of the other may be placed with their equal angles in coincidence. Let ABC, ADE, be the two triangles having the common angle A ; then, ABC AB X AC...
Σελίδα 474 - And you, ye undevelopable scrolls ! Above the host wave your emblazoned rolls, Ruled for the record of his bright inventions. Ye Cubic surfaces ! by threes and nines Draw round his camp your seven-and-twenty lines — The seal of Solomon in three dimensions.
Σελίδα 196 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Σελίδα 453 - Dimensions," in which he shows, for instance, that if a fourth dimension were added to space, a closed material surface (or shell) could be turned inside out by simple flexure without either stretching or tearing.
Σελίδα 371 - Now the mathematics are peculiarly well adapted for this purpose, on the following grounds : 1. Every term is distinctly explained, and has but one meaning, and it is rarely that two words are employed to mean the same thing. 2. The first principles are self-evident, and, though derived from observation, do not require more of it than has been made by children in general. 3. The demonstration is strictly logical, taking nothing for granted except the self-evident first principles, resting nothing...
Σελίδα 453 - He was awarded the Gold Medal of the Royal Astronomical Society in 1954.
Σελίδα 359 - The hour and minute hands of a watch are together at 12 o'clock ; when are they next together ? Ans.
Σελίδα 453 - Elementary Theorems Relating to the Geometry of a Space of Three Dimensions and of Uniform Positive Curvature in the Fourth Dimension," published in Borchardt's Journal, Bd.