Algebra trigonometry 12e earl swokowski

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Nội dung chi tiết: Algebra trigonometry 12e earl swokowski

Algebra trigonometry 12e earl swokowski

ClassicTWELFTH EDITIONAlgebra and TrigonometrySwokowski • ColeALGEBRAQUADRATIC FORMULAIf a 0. the roots of ax2 + bx + c = 0 arc—b±- AacEXPONENTS AND R

Algebra trigonometry 12e earl swokowski RADICALSBINOMIALTHEOREM|x| < d if and only if-d < A < d|x| > d if and only if either A > d or A < — dMEANSArithmetic mean /1 of n numbersđi + d2 + • •

• + d„A =------------------------ItGeometric mean G of/1 numbersG = fflifl’ ■ ■ • 0SPECIAL PRODUCT FORMULAS(A + y)(x - y) = X2 - y2(x + ý)2 = X2 Algebra trigonometry 12e earl swokowski

+ 2xy + y2(a - y)2 = X2 - 2vy + y2(a + y)' = x' + 3x2y + 3xy2 + yJ(a - y)' = a' - 3x2y + 3xy2 - yJnth term of an arithmetic sequence with first term

Algebra trigonometry 12e earl swokowski

«1 and common difference da„ = «1 + (n - \ )dSum s„ of the first It terms of an arithmetic sequences„ = y(fli + (In)or 5, = -y[2fli + (/I - Dr/]nth te

ClassicTWELFTH EDITIONAlgebra and TrigonometrySwokowski • ColeALGEBRAQUADRATIC FORMULAIf a 0. the roots of ax2 + bx + c = 0 arc—b±- AacEXPONENTS AND R