If $\tan 2A = \cot(A - 18^{\circ})$,where $2A$ is an acute angle,find the value of $A$ (in $^{\circ}$).

  • A
    $108$
  • B
    $90$
  • C
    $18$
  • D
    $36$

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Similar Questions

State whether the following is true or false. Justify your answer.
$\cot A$ is not defined for $A = 0^{\circ}$.

$\frac{2 \tan 30^{\circ}}{1+\tan ^{2} 30^{\circ}} = ?$

Express the ratios $\cos A$,$\tan A$,and $\sec A$ in terms of $\sin A$.

Show that:
$(i)$ $\tan 48^{\circ} \tan 23^{\circ} \tan 42^{\circ} \tan 67^{\circ} = 1$
$(ii)$ $\cos 38^{\circ} \cos 52^{\circ} - \sin 38^{\circ} \sin 52^{\circ} = 0$

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

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