Manual of AlgebraBarnes, 1875 - 331 páginas |
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Página 99
... Ten years ago , a boy's age was now , it is of it . What is the father's of his father's ; age now ? Ans . 60 years . 11. The sixth part of a number added to its eighth part gives 56. What is the number ? Ans . 192 . 12. Two boys had ...
... Ten years ago , a boy's age was now , it is of it . What is the father's of his father's ; age now ? Ans . 60 years . 11. The sixth part of a number added to its eighth part gives 56. What is the number ? Ans . 192 . 12. Two boys had ...
Página 144
... tens and units . Let N denote such a number , x the tens of its square root , and y the units ; then will N = ( x + y ) 2 = x2 + 2xy + y2 = x2 + ( 2x + y ) y ; that is , the number is equal to the square 144 MANUAL OF ALGEBRA .
... tens and units . Let N denote such a number , x the tens of its square root , and y the units ; then will N = ( x + y ) 2 = x2 + 2xy + y2 = x2 + ( 2x + y ) y ; that is , the number is equal to the square 144 MANUAL OF ALGEBRA .
Página 145
... tens in its root , plus twice the product of the tens by the units , plus the square of the units . We first find the tens of the root . Since the square of tens can contain no significant figure less than hun- dreds , the two figures ...
... tens in its root , plus twice the product of the tens by the units , plus the square of the units . We first find the tens of the root . Since the square of tens can contain no significant figure less than hun- dreds , the two figures ...
Página 146
William Guy Peck. mainder . Doubling the tens , we have 8 tens , which is contained in 164 ( that is , 8 is contained in 16 ) 2 times ; adding 2 to 8 tens , that is , annexing 2 to 8 and mul- tiplying the result by 2 , we find 164 ...
William Guy Peck. mainder . Doubling the tens , we have 8 tens , which is contained in 164 ( that is , 8 is contained in 16 ) 2 times ; adding 2 to 8 tens , that is , annexing 2 to 8 and mul- tiplying the result by 2 , we find 164 ...
Página 151
... tens and units . Denoting the number by N , the tens in its cube root by a , and the units EXTRACTION OF ROOTS . 151 1o Roots of Numbers.
... tens and units . Denoting the number by N , the tens in its cube root by a , and the units EXTRACTION OF ROOTS . 151 1o Roots of Numbers.
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Términos y frases comunes
algebraic Arithmetic ax² binomial formula called clearing of fractions coefficients common difference contain contrary signs cube root Davies denominator denote the number distance dividend divisible equa equal roots equation whose roots EXAMPLES exponent expression extracting the square factors Find the cube Find the greatest Find the least Find the square Find the sum following principle following rule geometrical geometrical progression given equation greatest common divisor hence imaginary indicated irreducible fraction least common multiple logarithm Mathematics miles minuend monomial multiplying both members negative nth root number of terms operation partial fractions polynomial positive preceding problem proportion quan quotient radical sign ratio real roots Reduce remainder resulting equation roots equal second degree second member second term solved square root Sturm's Theorem substituting subtract third tion tity transposing travels unknown quantity V₁ whole number
Pasajes populares
Página 145 - Which proves that the square of a number composed of tens and units contains, the square of the tens plus twice the product of the tens by the units, plus the square of the units.
Página 239 - Conversely, if the product of two quantities is equal to the product of two other quantities, the first two may be made the extremes, and the other two the means of a proportion.
Página 267 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 245 - In arithmetical progression there are five parts to be considered, viz : the first term, the last term, the number of terms, the common difference, and the sum of all the terms.
Página 42 - ... the first term of the quotient ; multiply the divisor by this term and subtract the product from the dividend. II. Then divide the first term of the remainder by the first term of the divisor...
Página 239 - In any proportion, the product of the means is equal to the product of the extremes.
Página 245 - That is, any term is equal to the first term, plus the product of the common difference by the number of preceding terms.
Página 41 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Página 264 - THE LOGARITHM: of a number is the exponent of the power to which it is necessary to raise a fixed number, to produce the given number. The fixed number is called the base of the system.