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sinA-sin5A+sin9A-sin13A/cosA-cos5A-cos9A+cos13A=cotAPlan prove that.....

Abhinand Nair , 8 Years ago
Grade 11
anser 1 Answers
Saurabh Koranglekar

Last Activity: 6 Years ago

Dear student

https://www.askiitians.com/forums/Trigonometry/solve_133494.htm

Kindly find the link

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