Trig or treat [electronic resource] : an encyclopedia of trigonometric identity proofs (TIPs), intellectually challenging games / Yeo Adrian.
By: Yeo, Adrian.
Contributor(s): ebrary, Inc.
Material type:![materialTypeLabel](/opac-tmpl/lib/famfamfam/BK.png)
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Electronic reproduction. Palo Alto, Calif. : ebrary, 2009. Available via World Wide Web. Access may be limited to ebrary affiliated libraries.
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