Geometry Level 3

Compare the following inequalities:

a) $$\cos 1 < \cos 1^\circ$$
b) $$\sin 1 > \sin 1^\circ$$
c) $$\sin 1^\circ< \sin 2^\circ$$
d) $$\sin 2 > \sin3$$
e) $$\cos 1 > \sin1$$

How many of these inequalities above are true?

Bonus: Solve this question using graph.

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