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99.26 Proof without words: cosec 2x = cot x − cot 2x

Published online by Cambridge University Press:  10 July 2015

Shikha Chandrashekhar*
Affiliation:
Std. XII – Section D, Lakshmipat Singhania Academy, 12-B Alipore Road, Kolkata - 700027, India

Abstract

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Type
Notes
Copyright
Copyright © Mathematical Association 2015 

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