Addition and subtraction trig identities - Free Educational videos for Students in k-12


Addition and subtraction trig identities - By Khan Academy



DESCRIPTION:

Sal evaluates the cosine of twice an������������angle whose right triangle is given. To do this, he must use the cosine double-angle formula.

OVERVIEW:

Addition and subtraction trig identities 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 Addition and subtraction trig identities but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.


GRADES:

0


STANDARDS:

HSF-TF.C.9

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