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Engineering Math Practice Test: Partial Differentiation
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Partial Differentiation topics include: Limits and derivatives of variables, implicit and partial differentiation, eulers theorem, jacobians, quadrature, integral sign differentiation, total derivative, implicit partial differentiation and functional dependence. Partial differentiation is a mathematical process that finds the derivative of a function with respect to one of its variables, while holding the other variables constant. It's used in vector calculus and differential geometry. Partial differentiation is more general than ordinary differentiation, which finds the derivative with... Show more
Engineering Math Practice Test: Partial Differentiation
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25 Questions

1. limx → 1⁡ (x-1)Tan(πx2) is?
2. The value of limx → 0⁡⁡ [x]Cos(x), [x] denotes the greatest integer function _______
3. A foil is to be put as shield over a cake (circular) in a shape such that the heat is even along any diameter of the cake.
Given that the heat on cake is proportional to the height of foil over cake, the shape of the foil is given by
4. In euler theorem x ∂z∂x + y ∂z∂y = nz, here ‘n’ indicates?
5. f(x, y, z, t) = xy + zt + x2 yzt; x = k3 ; y = k2; z = k; t = √k
Find dfdt at k = 1
6. Evaluate the differentiation of \(tan^{-1}\frac{cos(x)-sin(x)}{cos(x)+sin(x)}\)
7. The gradient of a function is parallel to the velocity vector of the level curve.
8. Value of ddx⁡ [(1 + xex}{1-Cos(x))].
9. The relative error in the volume of figure having hemispherical ends and a body of right circular cylinder is, if error in radius(r) is 0 and in height(h) is 1.
10. The jacobian of p,q,r w.r.t x,y,z given p=x+y+z, q=y+z, r=z is ________
11. Error is the Uncertainty in measurement.
12. Does function f(x,y) = \(Sin^{-1} [\frac{(\sqrt x+\sqrt y)}{\sqrt{x+y}}]\) can be solved by euler’ s theorem.
13. The speed of a boat is given by, v = k(1t – at), where k is the constant and l us the distance travel by boat in time t and a is the acceleration of water. If there is an change in ‘l’ from 2cm to 1cm in time 2sec to 1sec. If the acceleration of water changes from 0.95 mt/sec2 to 2 mt/sec2 find the motion of boat.
14. \(\lim_{x\rightarrow 0}\frac{ax^3+b sin(x)+c cos(x)}{x^5}=1\), then find the value of a, b and c.
15. Given \(∫_0^8x^{\frac{1}{3}}dx,\) find the error in approximating the integral using Simpson’s 1/3 Rule with n=4.
16. In euler theorem x ∂z∂x + y ∂z∂y = nz, here ‘n’ indicates?
17. Evaluate differentiation of x2 Sin(x) w.r.t Tan(x)Cosec(x)
18. Relative error in x is?
19. The value of \(\frac{∂z}{∂y}\)=8x2+6xy2+4. What is the function z expressed as?
20. Given that limit exist find \(lt_{(x,y,z)\rightarrow(-9,-9,-9)}\frac{tan((x+9)(y+11)(z+7))}{(x+9)(y+10)}\)
21. f(x, y) = sin(xy) + x2 ln(y) Find fyx at (0, π2)
22. f(x, y)=\(\frac{x^3+y^3}{x^{99}+y^{98}x+y^{99}}\) find the value of fy at (x,y) = (0,1).
23. If f(x,y)is a function satisfying euler’ s theorem then?
24. What is the maximum area of the rectangle with perimeter 500 mm?
25. Given that limit exists find \(lt_{(x,y,z)\rightarrow(2,2,2)}\left (\frac{ln(1+\frac{xy-2x-y+z}{xz-2x-6z+12}+\frac{xz-5x-2z+10}{xy-7y-2x+14}}{(x-2)(y-2)(z-2)}\right )\)