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prove that :- cot x . cot 2x – cot 2x . cot 3 x – cot 3x . cot x = 1​

By Emery

prove that :- cot x . cot 2x – cot 2x . cot 3 x – cot 3x . cot x = 1​

About the author
Emery

(5x+3x+7f UX
yxー3) )
[tex]( {5x}^{2} + 3x + 7) \times (4x – 3)[/tex]
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Define following terms:

1. Supplements
2. Salutation
3. Complimentary Close
4. Quotations
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