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Mathematics Mock Test - 7

Medium 50 Questions 49 min 50 marks

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49 min · 50 marks · Full test mode with leaderboard

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Question No: 6Difficulty: mediumMarks: 1mcq

The minors of - 4 and 9 and the co-factors of - 4 and 9 in the determinant - 1 - 4 - 7 - 2 - 5 - 8 3 - 6 9 are respectively:

Question No: 7Difficulty: mediumMarks: 1mcq

If n (U) = 1000, n (X) = 300, n (Y) = 400 and n (X \cap Y) = 200, then find n (P (X^{'} \cap Y^{'})) .

Question No: 8Difficulty: mediumMarks: 1mcq

The real value of k for which the system of equations 2 k x - 2 y + 3 z = 0, x + k y + 2 z = 0, 2 x + k z = 0, has a non-trivial solution is:

Question No: 9Difficulty: mediumMarks: 1mcq

The values of x for which the given matrix - x 2 x x x - 2 2 - x - x will be non-singular are:

Question No: 10Difficulty: mediumMarks: 1mcq

If f (1) = 1, f^{'} (1) = 3, then the derivative of f (f (f (x))) + (f (x))^{2} at x = 1 is:

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