How 9 Cheenta students ranked in top 100 in ISI and CMI Entrances?

# Understand the problem

In the range 0f $0 \leq x \leq 2 \pi$ , the equation $\cos (\sin (x) ) = \frac{1}{2}$  has how many solutions?

# Tutorial Problems... try these before watching the video.

[/et_pb_text][et_pb_text _builder_version="4.0.7" text_font_size="18px" custom_padding="20px|30px|20px|30px|false|false" border_radii="on|5px|5px|5px|5px" box_shadow_style="preset1"]1. Show geometrically that $\cos ( \frac{\pi}{3} ) = \frac{1}{2}$. 2. How does the graph of cos (sin(x)) looks like?  What if you drew f(x)) = cos(cos(cos(x)))?

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