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TRIGONOMETRIC FUNCTIONS — MATHS STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceMATHSTRIGONOMETRIC FUNCTIONS1 Mark
Question
Find the values of the trigonometric function: $\tan \frac{{19\pi }}{3}$
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Answer

$\tan \frac{{19\pi }}{3} = \tan \frac{{19}}{3} \times 180 = \tan 1140^\circ $
tan 1140° =$\tan (3 \times 360^\circ + 60^\circ ) = \tan 60^\circ = \sqrt 3 $

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