A Second Book in Algebra

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C.E. Merrill, 1920 - Algebra - 330 pages
 

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Page 215 - If the number is less than 1, make the characteristic of the logarithm negative, and one unit more than the number of zeros between the decimal point and the first significant figure of the given number.
Page 222 - To Divide One Number by Another, Subtract the logarithm of the divisor from the logarithm of the dividend, and obtain the antilogarithm of the difference.
Page 222 - Root of a Number, Divide the logarithm of the number by the index of the required root.
Page 31 - The difference of two like even powers of two quantities is divisible by the sum of the quantities...
Page 296 - The exponent of a in the first term is less by 1 than its exponent in the dividend, and decreases by 1 in each succeeding term. III. The exponent of b in the second term is 1, and increases by 1 in each succeeding term. IV.
Page 214 - Hence, the characteristic of an integral or mixed number is one less than the number of figures to the left of the decimal point. 176. Characteristic of a Decimal Fraction. 1 = 10°.
Page 236 - The square of any polynomial equals the sum of the squares of the terms plus twice the product of each term by each term which follows it. It is often useful to indicate the order in which the products of the terms are taken as shown in the following diagram.
Page 179 - Inferred from the Coefficients. It is important to be able to infer at once from the nature of the coefficients of an equation whether the roots of the equation are equal or unequal, real or imaginary, positive or negative. Any quadratic equation may be reduced to the form ax2 + bх + e = 0, in which a is positive.

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