Understanding angle addition formulas - By Khan Academy
Transcript
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Summarizer
DESCRIPTION:
Sal proves the identity cos(x+y) = cos(x)*cos(y) - sin(x)*sin(y).
OVERVIEW:
Understanding angle addition formulas is a free educational video by Khan Academy.It helps students in grades 0 practice the following standards HSF-TF.C.9.
This page not only allows students and teachers view Understanding angle addition formulas but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.
GRADES:
0
STANDARDS:
HSF-TF.C.9
