Mathematics, 29.09.2019 05:30 heavendavis101
Example 1. solve the pde 4ux β buy = 0, together with the auxiliary condition that u(0, y) = y3. by (2) we have u(x, y) = f(-3x β 4y). this is the general solution of the pde. setting x = 0 yields the equation y3 = f(-4y). letting w = - 4y yields f(w) = -3/64. therefore, u(x, y) = (3x + 4y) /64. solutions can usually be checked much easier than they can be derived. we check this solution by simple differen- tiation: uy = 9(3x + 4y)/64 and uy = 12(3x + 4y)? /64 so that 4ux β 3y = 0. furthermore, u(0, y) = (3.0 + 4y)3/64 = y3. o
Answers: 3
Mathematics, 21.06.2019 15:30
Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are
Answers: 1
Mathematics, 21.06.2019 16:30
Refer to the table below if needed. second quadrant third quadrant fourth quadrant sin(1800- - cos(180Β° -) tan(180Β°-e) =- tane cot(1800-0) 10 it to solo 888 sin(180Β° +c) = - sine cos(180Β° +) =- cose tan(180Β° +c) = tane cot(180Β° +o) = cote sec(180Β° + c) = - seco csc(180Β° +2) = - csce sin(360Β° -) =- sine cos(360Β° -) = cose tan(360Β° - e) =- tane cot(360Β° -) = -cote sec(360Β° -) = seco csc(360Β° -) = csco sec(180Β° -) = csc(180Β° -) = csca 1991 given that sine = 3/5 and lies in quadrant ii, find the following value. tane
Answers: 2
Mathematics, 21.06.2019 19:30
Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11
Answers: 1
Example 1. solve the pde 4ux β buy = 0, together with the auxiliary condition that u(0, y) = y3. by...
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