SOLUTION: *NOTE that if there is a ! before a letter, that letter is a subscript. Since there is many subscripts, I will put another ! to mark the end of the subscript.
Show that, if S!n! i
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-> SOLUTION: *NOTE that if there is a ! before a letter, that letter is a subscript. Since there is many subscripts, I will put another ! to mark the end of the subscript.
Show that, if S!n! i
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Question 912970: *NOTE that if there is a ! before a letter, that letter is a subscript. Since there is many subscripts, I will put another ! to mark the end of the subscript.
Show that, if S!n! is the length of one side of a regular polygon inscribed in a circle of radius, r, then the length of one side of a regular polygon with twice as many sides inscribed in the same circle is given by the formula: Found 2 solutions by richard1234, richwmiller:Answer by richard1234(7193) (Show Source):
Or if you know TeX/LaTeX, the underscore (_) is more standard:
s_1
a_{2k} (note: curly braces required for multi-char superscripts)
Back to your original question, here's a hint: draw a regular n-gon and a regular 2n-gon inside the same circle so that the vertices of the n-gon coincide with n of the vertices of the 2n-gon. You should obtain some isosceles triangles with sides , and . Do some angle chasing and perhaps apply the law of sines or law of cosines.
