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ECAT - Practice Test - Maths - Algebra Quiz

Attempt 10 MCQs on ECAT - Practice Test - Maths - Algebra | Quiz 6

51. What is the coefficient of x² in (1+x)³?



52. What are the coefficients in the expansion of (a+b)²?



53. If α and β are the roots of x² - 3x + 2 = 0, find α² + β².



54. What is the inverse of matrix A = [[1, 2], [3, 4]]?



55. If α and β are the roots of 2x² - 6x + 3 = 0, find the value of 1/α + 1/β.



56. Find the determinant of [[1, 2, 3], [4, 5, 6], [7, 8, 9]].



57. What is the term independent of x in the expansion of (x - 1/x)⁶?



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