4a 17.11.03
FULL NAME:
Test 1
Task 1 ( 7p.) Sketch the following set in the complex plane
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Task 2 ( 8 p). Find the following set of numbers
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Task 3 (8p). Determine all the complex roots of the following polynomial
W(x) = x3 +3x2 + 7x +5 .
Task 4 (6p) Using elementary row operations find the inverse matrix of
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Task 5 (6 p.) Calculate the determinant:
Task 6 (8 p.) AAAAA Use the Gauss elimination method to solve the following system of equations
Task 7 (7 p.) Find AB - BA , for
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duration 80 min.