Trigonometric Functions
\[ \Large \sin \left(30^\circ\right) = \ ? \]
by
bhavya jain
\[ \cos(45^\circ) \times \cos(46^\circ) \times \cos(47^\circ) \times \ldots \times \cos(135^\circ ) = \ ? \]
by
Dinesh Nath Goswami
\[ \huge \frac{\hspace{2mm} \frac{\hspace{2mm} \frac{\hspace{2mm} \frac{\hspace{2mm} \frac{\sin x}{\cos x}\hspace{2mm} }{\tan x}\hspace{2mm} }{\cot x}\hspace{2mm} }{\sec x}\hspace{2mm} }{\csc x}\]
Find the value of the above fraction tower if \(0^\circ < x < {90}^\circ\).
by
Nihar Mahajan
True or False?
\[ \sin ^{-1} \left( \sin \theta \right) = \theta. \]
The domain of \( \sin \theta \) is all real numbers.
by
Calvin Lin
Calculate
\[ \frac{ 9 \cot^2 60^\circ + \sec ^2 45 ^\circ - 4 \sin 90^\circ } { 3 \tan^2 30^\circ + \csc^2 45^\circ - \tan 45^\circ }. \]
by
Mardokay Mosazghi