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A 10-kg projectile is fired vertically upward from the ground, with an initial velocity of 50 m/s, Fig. 13-7a. Determine the maximum height to which it will travel if (a) atmospheric resistance is neglected; and (b) atmospheric resistance is measured as Fo=(0.01v) N, where v is the speed of the projectile at any instant, measured in m/s.

If resources were abundant, there will be no need to study economics. Discuss


Let X follows a normal distribution with mean 40 and variance 9. Then mean of Y= (X-40)/3 is


Compare and contrast South African government expenditure trends with other global economies

over the past 10 – 15 years


        [ 1 0 -1

3. Consider the matrix A =  0 3 0

                      -1 0 1 ]


  1. Find the eigenvalues of A.
  2. Find the eigenspaces corresponding to each eigenvalue from A.

2. Consider a linear transformation T: R3 → R3 defined by



  ([x         [ x + 4y +3z  

T  y     =      -5y - 4z 

    z])        5x + 10y + 7z ]



Note: T is a 3x1 matrix containing x, y, z respectively. T is equal to another matrix as shown above.


a) Find the matrix A for T


b) Find a basis for ker(T) and the dim(ker(T)). Then find dim(Im(T)), without finding a basis for Im(T). (Show all working)


c) Find a basis for Im(T)



  1. Answer the following questions

                                                              →            →            →  [ 1

a) Consider the linear transformation T(x) = proju(x), where u =  0

                                                                                                      3 ] 

Find the matrix for T.



b) Find the matrix for the linear transformation which reflects every vector in R2 across the x-axis and then rotates every vector through an angle of 𝝅/6. (Show all working)



EXERCISE 2: Find the rank and the nullity of the linear transformation S: p_1→ℝ given by 

     S(p(x)) = ∫_0^1p(x)dx.



If Gouda cheese and cheddar cheese are substitutes, then which of the following would increase the demand for cheddar cheese?



Write a c++ program using function that take an array of integers as input and return the

sum of number in the array.


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