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Elements of Algebra: Being an Abridgment of Day's Algebra, Adapted to the ...
Jeremiah Day,James Bates Thomson
Uten tilgangsbegrensning - 1844
3d power 4th power a-Ha a-Hb Abridgment of Day's added antecedent arithmetical binomial Binomial Theorem called changing the sign co-efficient common denominator common difference common index common measure completing the square compound quantities contains couplet CT I C E cube root Day's Algebra denoted Divide the number dividend division divisor dollars equal factors equal quantities Find the square find two numbers gallons geometrical progression given quantity greater Hence I O N improper fraction inches inder integer inverted last term less letters Mult multiplicand multiplied negative quantity nth root number of terms numerator and denominator parallelogram positive preceding prefixed principles Prob quadratic equation quan QUEST.--When QUEST.-How QUEST.-What quotient radical quantities radical sign ratio Reduce the equation remainder rule side simple ſº square root Substitute subtracted subtrahend third tion tity Transposing twice unit unknown quantity
Side 51 - 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.
Side 179 - If 36 be added to the number, the digits will be inverted. What is the number] Prob.
Side 198 - When there is a series of quantities, such that the ratios of the first to the second, of the second to the third, of the third to the fourth, &c.
Side 210 - It may undergo any change which will not affect the equality of the ratios ; or which will leave the product of the means equal to the product of the extremes.
Side 121 - Required the second root of x". 14. Required the fifth root of d3. 15. Required the 8th root of a3. 210. a. The rule in the preceding article may be applied to every case in evolution. But when the quantity whose root is to be found, is composed of several factors, there will frequently be an advantage in taking the root of each of the factors separately. This is done upon the principle that the root of the product of several factors, is equal to the product of their roots. Thus ^/a6=^/ax Vb.
Side 209 - Art. 374, that in a proportion, either extreme is equal to the product of the means, divided by the other extreme; and either of the means is equal to the product of the extremes, divided by the other mean. 1. If a : b :: c : d, then ad=bc 2.
Side 91 - The distance from A to D is 34 miles. The distance from A to B is to the distance .from C to D as 2 to 3. And ± of the distance from A to B, added to half the distance from C to D, is three times the distance from B to C. What are the respective distances ? Ans. From A to 5=12 ; from B to C=4 ; from C to JD=18. Prob. 48. Divide the number 36 into 3 such parts, that \ of the first, i of the second, and i of the third, shall be equal to each other.
Side 252 - It is required to find three numbers in geometrical progression, such that their sum shall be 14, and the sum of their squares 84.