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Quiz

Unit 2 test

jason wheeler 16 Fragen

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  1. 1find the partial derivitive of this function. f(x,y) = x^2 + y^2
    1. Adf/dx = 2x + y^2, df/dy = x^2 + 2y
    2. Bdf/dx = x^2 + 2y, df/dy = 2x + y^2
  2. 2What is the gradient of the function? x^3 + y^2
    1. ABild zu Antwort A
    2. BBild zu Antwort B
  3. 3the directional derivitive of this gradient is [4,3] when the vector = (1,1)?Bild zu Frage 3
    1. ARichtig
    2. BFalsch
  4. 4which paremtric function will draw fastest?
    1. A2x + 2y
    2. B3x + 3y
    3. C(1/2)x + (1/2)x
    4. D4x + 4y
  5. 5what is the location of the point where T = 4 in this function. (1/2)t^2 + (1/2)t^2
    1. A(8,8)
    2. B(16,16)
    3. C(4,4)
    4. D(0,0)
  6. 6What is the derivitive of this functions? f(x,y) = x^2 + y^2 and x(t) = cos(t) and y(t) = sin(t)
    1. A-2sin(t)(cos(t)(cos^2(t))) + cos^2(t)(sin(y)(2cos(t)))
    2. B-sin^2(t)(cost)(2cos(t))) + 2cos(t)(sin(t)(cos^2(t)))
  7. 7curvture is where you are driving along the road and your wheel locks up, and the curture is the radius of the circle.
    1. ARichtig
    2. BFalsch
  8. 8find the curvture. f(t) = cos(t) and f(t) = sin(t) and f(t) = t/10
    1. A99/100
    2. B101/100
  9. 9find the derivitive. f(t,s) = t^2 + s^2 f(t,s) = st f(t,s) ts^2 + st^2
    1. Adv/dt = 2t, s, s^2 - 2st. dv/ds dv/ds = -2s, t, 2ts - t^2
    2. Bdv/dt = -2s, t, 2ts - t^2. dv/ds = 2t, s, s^2 - 2st
  10. 10when the density increases it is what.
    1. Anegative divergence
    2. Bpositive divergence
    3. Cno divegence

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Beschreibung
multaviarible calculus (week 12) Quiz am Unit 2 test, erstellt von jason wheeler am 16/10/2017.
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English
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