A Complete Course in Algebra for Academies and High SchoolsLeach, Shewell & Sanborn, 1885 - 349 σελίδες |
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a²b a²b² ab+b² ab² ab³ Adding Algebra arithmetical means arithmetical progression ax² binomial cents coefficient cologarithm complete divisor Completing the square cube root decimal degree derive the formulæ digits equivalent fraction EXAMPLES exponent expression Extracting the square Find the cube Find the value Find two numbers following equations following rule formula geometrical progression given equations Hence highest common factor last term logarithm lowest common multiple mantissa members the square monomial Note obtained perfect square polynomial positive proportion QUADRATIC EQUATIONS quotient radical sign ratio Reduce the following remainder required root Required the number result rule of Art second term simplest form Solve the equation Solve the following square root Transposing trial-divisor twice unknown quantity Whence x²y xy³
Δημοφιλή αποσπάσματα
Σελίδα 164 - Arts. 200 and 201 we derive the following rule : Extract the required root of the numerical coefficient, and divide the exponent of each letter by the index of the root.
Σελίδα 211 - In any trinomial square (Art. 108), the middle term is twice the product of the square roots of the first and third terms...
Σελίδα 44 - ... the product of the two, plus the square of the second. In the third case, we have (a + b) (a — b) = a2 — b2. (3) That is, the product of the sum and difference of two quantities is equal to the difference of their squares.
Σελίδα 253 - The first and fourth terms of a proportion are called the extremes; and the second and third terms the means. Thus, in the • proportion a : b = с : d, a and d are the extremes, and b and с the means.
Σελίδα 253 - To express that the ratio of A to B is equal to the ratio of C to D, we write the quantities thus : A : B : : C : D; and read, A is to B as C to D.
Σελίδα 44 - The square of the difference of two quantities is equal to the square of the first minus twice the product of the first by the second, plus the square of the second.
Σελίδα 288 - ... the logarithm of a fraction is equal to the logarithm of the numerator minus the logarithm of the denominator.
Σελίδα 105 - Any term may be transposed from one side of an equation to the other by changing its sign. For, consider the equation x + a = b.
Σελίδα 256 - In a series of equal ratios, any antecedent is to its consequent, as the sum of all the antecedents is to the sum of all the consequents. Let a: b = c: d = e:f.
Σελίδα 256 - In any proportion the terms are in proportion by Composition and Division; that is, the sum of the first two terms is to their difference, as the sum of the last two terms is to their difference.