MCQs of Determinants

Showing 11 to 20 out of 36 Questions

11.

If (5, a), (-2, 5) and (-2, 3) are the vertices of a triangle whose area is 7, then the value of a is _____

12.

The equation of the line passing through (3, -2) and (-1, 4) is _____

13.

The equation of the line passing through (1, -3) and (5, -2) is _____

14.

|\begin{matrix} \cos 55^{˚} & \sin 55^{˚} \\ \sin 35 ˚ & \cos 35 ˚ \end{matrix}| =_____

15.

if |\begin{matrix} 1 & 2 & 4 \\ 2 & x & 5 \\ 4 & - 2 & 1 \end{matrix}| = 0, then x =_____

16.

The roots of |\begin{matrix} x + 1 & 6 & 2 \\ x & x & 3 \\ x & 5 & x \end{matrix}| = - 8 is_____

17.

|\begin{matrix} s i n 35^{˚} & c o s 35^{˚} \\ - s i n 55^{˚} & c o s 55^{˚} \end{matrix}| =_____

18.

if x = - 9 is a root of the equation |\begin{matrix} x & 3 & 7 \\ 2 & x & 2 \\ 7 & 6 & x \end{matrix}| = 0, then the other two roots are_____

19.

The value of |\begin{matrix} 1^{2} & 2^{2} & 3^{2} \\ 2^{2} & 3^{2} & 4^{2} \\ 3^{2} & 4^{2} & 5^{2} \end{matrix}| is_____

20.

|\begin{matrix} x & 3 \\ 4 & x \end{matrix}| = |\begin{matrix} 0 & - 2 \\ 2 x & 5 \end{matrix}|, then x =

_____

Showing 11 to 20 out of 36 Questions