A geometry problem by Mihir Srivastava
Geometry
Level
1
Solve This \[cos 0^o×cos 1^o×cos 2^o×cos 3^o×cos 4^o \cdot\cdot\cdot\cdot\cdot cos 88^o×cos 89^o×cos 90^o\]
by
Mihir Srivastava