Trigonometry: Product Identities

First published at 00:24 UTC on November 12th, 2019.

Math Easy Solutions

MES

subscribers

In this video I go over the trig product identities and provide a simple proof for them. The identities I cover are listed below:

sin(x)cos(y) = 1/2 [sin(x+y) + sin(x-y)]
cos(x)cos(y) = 1/2[cos(x+y) + cos(x-y)]
sin(x)sin(y) = 1/2[cos(x-y) - cos(x+y...

MORE
CategoryEducation
SensitivityNormal - Content that is suitable for ages 16 and over