Answer to Question #34269 in Trigonometry for jeff

Question #34269
prove the following indentities

a) sin(x+y)sin(x-y)=sin^2x-sin^2y
a) sin2x+sin4x+sin6x=4cosxcos2xsin3x
1
Expert's answer
2013-10-11T10:08:32-0400
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/mathematics-answer-34269.pdf

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