Question

hello, How can i convert from sine/cosine/tangnet to radians?

ex: arcsin(1/2)

Can someone go with me step by step? thanks.

Answer 1

We know that one of the angles
\[\theta\]
such that
\[\sin\theta=\frac12\]
is :
\[\theta =30^\circ\]
So we should first convert it to radians like this :
\[30^\circ=\frac{30\pi}{180}=\frac\pi6\text{rd}\]
So :
\[\arcsin \frac12=\frac\pi6\]