$5 \cos A = 4 \sin A$,then $\tan A = \ldots$

In $\Delta ABC$,$m \angle C = 90^{\circ}$ and $\tan A = \frac{1}{\sqrt{3}}$,then $\sin A = \ldots$

If $\sin \theta = \frac{3}{5}$,then $\tan \theta = \ldots$

Which of the following pairs is correct for trigonometric inter-relationships?

$1. \cos \theta$	$a. \frac{\cos \theta}{\sin \theta}$
$2. \tan \theta$	$b. \frac{1}{\csc \theta}$
$3. \cot \theta$	$c. \frac{1}{\sec \theta}$
$4. \sin \theta$	$d. \frac{1}{\cot \theta}$
	$e. \sin \theta \cdot \cos \theta$

Write 'True' or 'False' and justify your answer.
The value of $2 \sin \theta$ can be $(a + \frac{1}{a}),$ where $a$ is a positive number,and $a \neq 1$.

Evaluate:
$\frac{\tan 26^{\circ}}{\cot 64^{\circ}}$