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FE Exam Tutorial

FE Exam Tutorial. http://fe.eng.usf.edu. Math syllabus. 1. Vectors. What can you say about two vectors whose dot product is negative?. The vectors are orthogonal Angle between vectors is <90 o Angle between vectors is >90 o.

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FE Exam Tutorial

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  1. FE Exam Tutorial http://fe.eng.usf.edu

  2. Math syllabus

  3. 1. Vectors

  4. What can you say about two vectors whose dot product is negative? • The vectors are orthogonal • Angle between vectors is <90o • Angle between vectors is >90o

  5. If two vectors u and v are orthogonal to each other, then u.v= • -1 • 0 • 1

  6. END

  7. 2. Analytic Geometry

  8. Two straight lines are perpendicular to each other. The product of the slope of the two lines is • -1 • 0 • 1 • Cannot be determined

  9. END

  10. 3. Roots of Equations

  11. The value of x that satisfies f (x)=0 is called the • root of equation f (x)=0 • root of function f (x) • zero of equation f (x)=0 • none of the above

  12. A quadratic equation has ______ root(s) • one • two • three • cannot be determined

  13. For a certain cubic equation, at least one of the roots is known to be a complex root. The total number of complex roots the cubic equation has is • one • two • three • cannot be determined

  14. Equation such as tan (x)=x has __ root(s) • zero • one • two • infinite

  15. A polynomial of order n has zeros • n -1 • n • n +1 • n +2

  16. The velocity of a body is given by v (t)=5e-t+4, where t is in seconds and v is in m/s. The velocity of the body is 6m/s at t = • 0.1823 s • 0.3979 s • 0.9162 s • 1.609 s

  17. END

  18. 4. Numerical Methods

  19. The number of significant digits in 2.30500 is • 3 • 4 • 5 • 6

  20. END

  21. 5. Ordinary Differential Equations

  22. In the differential equation the variable x is the variable • Independent • Dependent

  23. In the differential equation the variable yis the variable • Independent • Dependent

  24. Ordinary differential equations can have these many dependent variables. • one • two • any positive integer

  25. Ordinary differential equations can have these many independent variables. • one • two • any positive integer

  26. A differential equation is considered to be ordinary if it has • one dependent variable • more than one dependent variable • one independent variable • more than one independent variable

  27. Classify the differential equation • linear • nonlinear • undeterminable to be linear or nonlinear

  28. Classify the differential equation • linear • nonlinear • linear with fixed constants • undeterminable to be linear or nonlinear

  29. Classify the differential equation • linear • nonlinear • linear with fixed constants • undeterminable to be linear or nonlinear

  30. The velocity of a body is given by Then the distance covered by the body from t=0 to t=10 can be calculated by solving the differential equation for x(10) for

  31. The form of the exact solution to is

  32. END

  33. 6. Matrices

  34. The size of matrix is

  35. The c32 entity of the matrix • 2 • 3 • 6.3 • does not exist

  36. Given • 0 • 6 • 12 then if [C]=[A]+[B], c12=

  37. Given • -3 • 3 • 9 then if [C]=[A]-[B], c23=

  38. A square matrix [A] is lower triangular if

  39. A square matrix [A] is upper triangular if

  40. An identity matrix [I] needs to satisfy the following matrix is square all of the above

  41. Given • -57 • -45 • 57 • Does not exist then if [C]=[A][B], then c31=.

  42. The following system of equations x + y=26x + 6y=12has solution(s). • no • one • more than one but finite number of • infinite

  43. END

  44. 7. Differential Calculus

  45. To find velocity from the location vs time data of the body, the mathematical procedure used is • Differentiation • Integration

  46. The definition of the derivative of a function f (x) is

  47. The exact derivative of f (x)=x 3 at x=5 is most nearly • 25.00 • 75.00 • 106.25 • 125.00

  48. Given y=sin (2x), dy/dx at x=3 • 0.9600 • 0.9945 • 1.920 • 1.989

  49. END

  50. 8. Integral Calculus

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