Mathematics · essential
Standard values at special angles for JEE
Trigonometrical identities and trigonometrical functions
Formula
\[\begin{array}{c|ccccc}x&0&\pi/6&\pi/4&\pi/3&\pi/2\\ \hline \sin x&0&1/2&1/\sqrt2&\sqrt3/2&1\\ \cos x&1&\sqrt3/2&1/\sqrt2&1/2&0\\ \tan x&0&1/\sqrt3&1&\sqrt3&\text{undefined}\end{array}\]
Conditions: Use reciprocals for \(\csc x,\sec x,\cot x\) where defined.
Direct evaluation and simplification in objective questions.