About This Lesson
Videos by Julie Harland organized at YourMathGal.com. In this video learn how to simplify trig expressions and solve equations using trig expressions. BasicTrigIdentity4
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Trigonometric Identities are not introduced until Junior and/or Senior year in a Trigonometry or Precalculus class. There is no standard that specifically address Trig Identities and are usually covered in Precalculus which is not aligned to the common core. Great Resource though!