The value of polynomial x² - $2\sqrt{2}$x + 3 when x = $2\sqrt{2}$ is :

1. -$\sqrt{2}$

2. $\sqrt{2}$

3. $2\sqrt{2}$

4. 3

$\begin{bmatrix$}[r] 7 & -4 \ 3 & 8 \end{bmatrix} = \begin{bmatrix}[r] p & q \ r & s \end{bmatrix}\begin{bmatrix}[r] 1 & 0 \ 0 & 1 \end{bmatrix}, the values of p, q, r and s are respectively :

1. p = 7, q = 3, r = -4 and s = 8

2. p = 7, q = -4, r = 3 and s = 8

3. p = -4, q = 7, r = 8 and s = 3

4. p = 3, q = 8, r = 7 and s = -4

The point P(-6, -3) is reflected in line y + 3 = 0 to point P'. The co-ordinates of point P' are :

1. (-6, 3)

2. (-6, -3)

3. (6, 3)

4. (6, -3)

In the given figure, ∠BCA = ∠CDA = 90°, then the value of $\dfrac{CD}{AD}$ is :

1. $\dfrac{BC}{CA}$

2. $\dfrac{BD}{AD}$

3. $\dfrac{BD}{CD}$

4. $\dfrac{CA}{BC}$