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Here are some mathematics MCQs I needed to check my answers to. Thanks :)
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Hi there,
Here are some mathematics MCQs I needed to check my answers to.
Thanks :)...
We already know the functions defined by y =C+a•f[b(x-d)] with the assumption that b>0. To see...
We already know the functions defined by y =C+a•f[b(x-d)] with the assumption that b>0. To see what happens when b<0, work parts (a)-(f) in order. (a) Use an even-odd identity to write y = sin(-2x) as a function of 2x. y= (b) How is your answer to part (a) related to y = sin(2x)? O It is the negative of y = sin (2x). olt equals y = sin (2x). (c) Use an even-odd identity to write y = cos(...
We already know the functions defined by y =c+a+f[b(x-d)] with the assumption that b>0. To see...
We already know the functions defined by y =c+a+f[b(x-d)] with the assumption that b>0. To see what happens when b<0, work parts (a)-(f) in order. (a) Use an even-odd identity to write y = sin (-2x) as a function of 2x. y = (b) How is your answer to part (a) related to y = sin (2x)? O It is the negative of y=sin (2x). It equals y=sin (2x). (c) Use an even-odd identity to write y = cos(-5x) as...
6. -1.25 points My Notes Evaluate (y 3 sin x) dx + (z2 +7 cos y) dy x3 dz COS JC where C is the c...
6. -1.25 points My Notes Evaluate (y 3 sin x) dx + (z2 +7 cos y) dy x3 dz COS JC where C is the curve r(t) - (sin t, cos t, sin 2t), 0 s t s 27. (Hint: Observe that C lies on the surface z - 2xy.) F dr-
6. -1.25 points My Notes Evaluate (y 3 sin x) dx + (z2 +7 cos y) dy x3 dz COS JC where C is the curve r(t) -...
U Question 15 "C 7 pts "С If S is the surface of the cylinder E=...
U Question 15 "C 7 pts "С If S is the surface of the cylinder E= {(x,y,z) : 32 + y < 4,1523}, oriented outwards, which of the following (after applying the Divergence Theorem) will compute zyz) - dS? 40 O (1 + y2 cos & sin 6)r dr de dz REC O 1988 6%" /*(1 + == sin ®)r dr do dz %%% %%% %%% (r cos 0 + 32 + y2 z cos ( sin 0), dr do...
(4) Evaluate the line integral F dr where C is the epicycloid with parametrization given by r(t) 5 cos t - gradient of...
(4) Evaluate the line integral F dr where C is the epicycloid with parametrization given by r(t) 5 cos t - gradient of the function f(x, y) = 3 sin(ry) + cos(y2) cos 5t and y(t) = 5 sin t - sin 5t for 0 < t < 2« and F is the (5) EvaluateF dr where F(x, y) with counterclockwise orientation (2y, xy2and C is the ellipse 4r2 9y2 36 _ F dr where F(r, y) = (x2 -...
Use the given transformation to evaluate the integral. -5x dx dy where R is the parallelogram bou...
Use the given transformation to evaluate the integral. -5x dx dy where R is the parallelogram bounded by the linesy-x+1, y-x +4 y#2x+2y»2x + 5 A) -5 B) 10 C)5 D)-10 32) y+ x where R is the trapezoid with vertices at (6,0), ,0).。. 6), (0.9) 45 45 B) ÷ sin l 45 C) sin 2 45 A) sin 2
Use the given transformation to evaluate the integral. -5x dx dy where R is the parallelogram bounded by the linesy-x+1,...
Solve by the Method of Undetermined Coefficients. 1. " - 3y' - 4y = 3e2x (ans....
Solve by the Method of Undetermined Coefficients. 1. " - 3y' - 4y = 3e2x (ans. y = C1e4x + cze* - e2x) 2. " - 4y = 4e3x (ans. y = C1 e - 2x + C2 e 2x + 4/5 e3x) 3. 2y" + 3y' + y = x2 + 3 sin x (ans. y = ci e-* + C2 e-x/2 + x2 - 6x + 14 - 3/10 sin x- 9/10 cos x) 4. Y" + y'...
None of the above. Question 13 Use the Laplace transform to solve the initial-value problem: [y'...
None of the above. Question 13 Use the Laplace transform to solve the initial-value problem: [y' + 2y -4 cos(5x), y(0)=2] 2) © plz) - cort5x) + 2 sin(52) + 5.24 1) 242 00452) + o) © Plz)= cos(x) + 2* sin(5x) – 60 6:20 d) y(x) =4 cos(5x) + 2 e) y(x) -4 cos(5x) - 2e2* 1) None of the above. Question 14
y = 3x0+ QUESTION 2 Solve the given differential equation. (The form of yp is given...
y = 3x0+ QUESTION 2 Solve the given differential equation. (The form of yp is given D2y + 25y = -5 sin 5x (Let y p = Ax sin 5x + Bx cos 5x.) sin 5x + c2 cos 5x + x sin 5x - 1 x cos 5x Oo oo cos 5x + = x cos 5x y = C1 sin 5x + C2 cos 5x + 5x sin 5x y = C1 sin 5x + C2 cos 5x...
only for part e A) Unconstrained optimization: 1) Find the local maxima, local minima and saddle...
only for part e
A) Unconstrained optimization: 1) Find the local maxima, local minima and saddle points of the following functions: a)f(x, y)=x²+ y2+2x–6 y+6 b)f(x,y)=(x-1)2-(y-3)? c)f(x,y)=x2-y2–2x-4 y-4 d)f(x,y)=2xy-5x²-2y +4x+4y-4 e)f(x,y)=e(x²+y?)
We already know the functions defined by y =C+a•f[b(x-d)] with the assumption that b>0. To see what happens when b<0, work parts (a)-(f) in order. (a) Use an even-odd identity to write y = sin(-2x) as a function of 2x. y= (b) How is your answer to part (a) related to y = sin(2x)? O It is the negative of y = sin (2x). olt equals y = sin (2x). (c) Use an even-odd identity to write y = cos(...
We already know the functions defined by y =c+a+f[b(x-d)] with the assumption that b>0. To see what happens when b<0, work parts (a)-(f) in order. (a) Use an even-odd identity to write y = sin (-2x) as a function of 2x. y = (b) How is your answer to part (a) related to y = sin (2x)? O It is the negative of y=sin (2x). It equals y=sin (2x). (c) Use an even-odd identity to write y = cos(-5x) as...
6. -1.25 points My Notes Evaluate (y 3 sin x) dx + (z2 +7 cos y) dy x3 dz COS JC where C is the curve r(t) - (sin t, cos t, sin 2t), 0 s t s 27. (Hint: Observe that C lies on the surface z - 2xy.) F dr-
6. -1.25 points My Notes Evaluate (y 3 sin x) dx + (z2 +7 cos y) dy x3 dz COS JC where C is the curve r(t) -...
U Question 15 "C 7 pts "С If S is the surface of the cylinder E= {(x,y,z) : 32 + y < 4,1523}, oriented outwards, which of the following (after applying the Divergence Theorem) will compute zyz) - dS? 40 O (1 + y2 cos & sin 6)r dr de dz REC O 1988 6%" /*(1 + == sin ®)r dr do dz %%% %%% %%% (r cos 0 + 32 + y2 z cos ( sin 0), dr do...
(4) Evaluate the line integral F dr where C is the epicycloid with parametrization given by r(t) 5 cos t - gradient of the function f(x, y) = 3 sin(ry) + cos(y2) cos 5t and y(t) = 5 sin t - sin 5t for 0 < t < 2« and F is the (5) EvaluateF dr where F(x, y) with counterclockwise orientation (2y, xy2and C is the ellipse 4r2 9y2 36 _ F dr where F(r, y) = (x2 -...
Use the given transformation to evaluate the integral. -5x dx dy where R is the parallelogram bounded by the linesy-x+1, y-x +4 y#2x+2y»2x + 5 A) -5 B) 10 C)5 D)-10 32) y+ x where R is the trapezoid with vertices at (6,0), ,0).。. 6), (0.9) 45 45 B) ÷ sin l 45 C) sin 2 45 A) sin 2
Use the given transformation to evaluate the integral. -5x dx dy where R is the parallelogram bounded by the linesy-x+1,...
Solve by the Method of Undetermined Coefficients. 1. " - 3y' - 4y = 3e2x (ans. y = C1e4x + cze* - e2x) 2. " - 4y = 4e3x (ans. y = C1 e - 2x + C2 e 2x + 4/5 e3x) 3. 2y" + 3y' + y = x2 + 3 sin x (ans. y = ci e-* + C2 e-x/2 + x2 - 6x + 14 - 3/10 sin x- 9/10 cos x) 4. Y" + y'...
None of the above. Question 13 Use the Laplace transform to solve the initial-value problem: [y' + 2y -4 cos(5x), y(0)=2] 2) © plz) - cort5x) + 2 sin(52) + 5.24 1) 242 00452) + o) © Plz)= cos(x) + 2* sin(5x) – 60 6:20 d) y(x) =4 cos(5x) + 2 e) y(x) -4 cos(5x) - 2e2* 1) None of the above. Question 14
y = 3x0+ QUESTION 2 Solve the given differential equation. (The form of yp is given D2y + 25y = -5 sin 5x (Let y p = Ax sin 5x + Bx cos 5x.) sin 5x + c2 cos 5x + x sin 5x - 1 x cos 5x Oo oo cos 5x + = x cos 5x y = C1 sin 5x + C2 cos 5x + 5x sin 5x y = C1 sin 5x + C2 cos 5x...
only for part e
A) Unconstrained optimization: 1) Find the local maxima, local minima and saddle points of the following functions: a)f(x, y)=x²+ y2+2x–6 y+6 b)f(x,y)=(x-1)2-(y-3)? c)f(x,y)=x2-y2–2x-4 y-4 d)f(x,y)=2xy-5x²-2y +4x+4y-4 e)f(x,y)=e(x²+y?)
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