Prove that AB=A(By)=B(Ay) Let A=xD+2 and B=xD-1
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- a is arbitrary 1. let x=1, y=2 4y^2=ax b is arbitrary 2. let x=1, y=2 x+2y=bEx: Find lim, 3f(x) x-1 if f(x)=3 13x-7 x>34.A.1. Is there a real number whose square is -1? a. Is there a real number x such that ? O x = -1 O x*2 = -1 4.A.1. Is there a real number whose square is -1? b. Does there exist such that x^2= -1? a number a real number 4.A.2. Is there an integer that has a remainder of 2 when it is divided by 5 and a remainder of 3 when it is divided by 6? a. Is there an integer n such that n has ? a remainder of 5 when it is divided by 2 and a remainder of 3 when it is divided by 6 a remainder of 2 when it is divided by 5 and a remainder of 3 when it is divided by 6
- there is a problem in question a : R=by/b+2y not only b+2yProve that (2) n = e+1Find L{f (t)} of the following functions. Note: a, b, e, k and r are constants. (1+1 ,0S:y={ *-1 if x<3 | 2x +1 if 3Every separable differential equation is exact. (A) True B) False21 Bahar Which of the following expressions are false? I. u(z, y) = e is a harmonic function. II. u(z, y) = sin(z- ay) is a Laplace equation. II. If f(z, y) is a harmonic function then f(x² - y?, 2xy) is a harmonic function. O a ll, II Obil, I Ocl O d.I, II O e.lIt is a set of points at distance of 3 above the the x - axis. Find its equation. Select one: O a y +3 = 0 O b. x - 3 = 0 O c.x +3 = 0 O d. y - 3 = 0Use De Moivre's theorem to change the given complex number to the form a + bi, where a and b are real numbers. {1-sqrt(3)i}^12 A -4096i B) 2048i -2048 D) -2048i E) 12Show that g(x) = 2x² + 3 − 3ª has a real zero using the Intermediate Value Theorem. -SEE MORE QUESTIONSRecommended textbooks for youStructural Analysis (10th Edition)Civil EngineeringISBN:9780134610672Author:Russell C. HibbelerPublisher:PEARSONPrinciples of Foundation Engineering (MindTap Cou…Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage LearningFundamentals of Structural AnalysisCivil EngineeringISBN:9780073398006Author:Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel LanningPublisher:McGraw-Hill EducationTraffic and Highway EngineeringCivil EngineeringISBN:9781305156241Author:Garber, Nicholas J.Publisher:Cengage LearningStructural Analysis (10th Edition)Civil EngineeringISBN:9780134610672Author:Russell C. HibbelerPublisher:PEARSONPrinciples of Foundation Engineering (MindTap Cou…Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage LearningFundamentals of Structural AnalysisCivil EngineeringISBN:9780073398006Author:Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel LanningPublisher:McGraw-Hill EducationTraffic and Highway EngineeringCivil EngineeringISBN:9781305156241Author:Garber, Nicholas J.Publisher:Cengage Learning