An Elementary Treatise on Algebra, Theoretical and Practical: With Attempts to Simplify Some of the More Difficult Parts of the Science, Particularly the Demonstration of the Binomial Theorem in Its Most General Form, [etc.]Hogan and Thompson, 1839 |
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Page ix
... surds Reduction of surds 143 .... 144 .... 73 76 Addition and subtraction of surds Multiplication and division of surds .. 148 To extract the square root of a bino- mial surd ..... To find multipliers which will make binomial surds ...
... surds Reduction of surds 143 .... 144 .... 73 76 Addition and subtraction of surds Multiplication and division of surds .. 148 To extract the square root of a bino- mial surd ..... To find multipliers which will make binomial surds ...
Page 143
... SURDS . ( 100. ) AN IRRATIONAL QUANTITY , or SURD , as it is sometimes called , is a quantity affected by a radical sign , or a fractional index , without which it cannot be accurately expressed ; the quantity itself not being ...
... SURDS . ( 100. ) AN IRRATIONAL QUANTITY , or SURD , as it is sometimes called , is a quantity affected by a radical sign , or a fractional index , without which it cannot be accurately expressed ; the quantity itself not being ...
Page 144
... surd , which is impossible ( Theor . 1 ) . THEOREM 3. If √ ( a + √b ) = x + y , then will ( a − √b ) = x y : x and y being supposed to be one or both quadratic surds . For since a + b = x2 + 2xy + y2 , and since x and y are one or ...
... surd , which is impossible ( Theor . 1 ) . THEOREM 3. If √ ( a + √b ) = x + y , then will ( a − √b ) = x y : x and y being supposed to be one or both quadratic surds . For since a + b = x2 + 2xy + y2 , and since x and y are one or ...
Page 145
... Surds , which admit of simplification , may always be divided into ¿ wo factors , one of which will contain a perfect power correspond- ing to the surd root : Hence , to simplify such surds , extract the root 13 REDUCTION OF SUrds . 145.
... Surds , which admit of simplification , may always be divided into ¿ wo factors , one of which will contain a perfect power correspond- ing to the surd root : Hence , to simplify such surds , extract the root 13 REDUCTION OF SUrds . 145.
Page 146
... surd be in the form of a fraction , it may be simpli- fied by multiplying both numerator and denominator by some ... SURDS . * ( 103. ) 146 REDUCTION OF SURDS .
... surd be in the form of a fraction , it may be simpli- fied by multiplying both numerator and denominator by some ... SURDS . * ( 103. ) 146 REDUCTION OF SURDS .
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Common terms and phrases
a²x² arithmetical progression ax² ax³ becomes bers BINOMIAL THEOREM bx² Clear the equation coefficients column common logarithms completing the square compound interest consequently cube root cubic equation cx² decimals difference Divide dividend division equal EXAMPLES expansion exponent extracting the root factors figure Find a number find the values Find two numbers fourth fraction gallons geometrical geometrical progression hence imaginary improper fraction integral last term logarithms method multiplied negative number of solutions number of terms numerator and denominator obtained positive preceding quadratic QUESTION quotient rational Reduce remainder represented Required the sum required to find result second term simple equation square root substituting subtracting surd third transposing transposition unknown quantity values of x whence whole number
Popular passages
Page 83 - В can perform a piece of work in 8 days, A and С together in 9 days, and В and С together in 10 days ; in how many days can each alone perform the same work ? Let...
Page 146 - PROBLEM I. To reduce a rational quantity to the form of a surd. RULE. Raise the quantity to a power...
Page 116 - The plate of a looking-glass is 18 inches by 12, and it is to be surrounded by a plain frame of uniform width/ having a surface equal to that of the glass.
Page 99 - The sum of the first and third of four numbers in geometrical progression is 148, and the sum of the second and fourth is 888.
Page 99 - A hare is 50 leaps before a greyhound, and takes 4 leaps to the greyhound's 3 ; but 2 of the greyhound's leaps are equal to 3 of the hare's ; how many leaps must the greyhound take, to catch the hare?
Page 75 - There is a number consisting of two digits, which is equal to four times the sum of those digits; and if 18 be added to it, the digits will be inverted. What is the number?
Page 67 - Ans. 16 and 24. 42. It is required to find a number such, that if it be increased by 7, the square root of the sum shall be equal to the square root of the number itself, and 1 more. Ans. 9.
Page 52 - An equation of the third, fourth, &c. degree, is one in which the highest power of the unknown quantity is the third, fourth, &c.
Page 114 - It is required to find two numbers, such, that their sum, product, and difference of their squares, shall be all equal.
Page 145 - The fore-wheel of a carriage makes 6 revolutions more than the hind- wheel in going 120 yards; but if the circumference of each wheel be increased one yard, it will make only 4 revolutions more than the hind-wheel in the same distance.