MATH-0070 Midterm: MATH70 exam2 Math70Exam2S18

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31 Jan 2019
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All calculators, cell phones, or other electronic devices must be turned o and put away during the exam. Unless otherwise stated, you must show all work to receive full credit. With your signature you are pledging that you have neither given nor received assistance on the exam. Students found violating this pledge will receive an f in the course. 100: (6 pts) find the inverse of a = . 1: (6 pts) t is a linear transformation from r2 to r2. = 5x1 + 9x2: (12 pts) true/false questions. For each of the statements below, decide whether it is true or false. Indicate your answer by shading the corresponding box. T f (f) (2 pts) if a is m n and rank a = m, then the linear transformation x 7 ax is onto. T f: (12 pts) suppose that a matrix a is row equivalent to the matrix b given below: