UNICAL Mathematics 2015/2016 Past Questions

Practice each question, then open it to see the full details.

Which of the following statement is not true?

A.A ∩ U = A
B.A ∪ U = A
C.A ∪ ∅ =∅
D.A ∩ A = A

The following are the scores of ten students in a test of 20 marks:
16, 17, 13, 16, 8, 5, 16, 19, 17, What is the modal score?

A.19
B.15
C.16
D.13

If $$cot \theta = \frac{{a^2} - {b^2}}{2ab}$$ find cosec θ

A.^{a² - b²}/_ab
B.^{a² + b²}/_2ab
C.^{a² + b²}/_ab
D.^2ab/_{a² + b²}

Find all t such that $$|\begin{matrix}t-4 & 3 \\ 2 & t-9 \end{matrix}|$$

A.(3, 10)
B.(-3, -10)
C.(-3, 10)
D.(3, -10)