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CBSE - X - Mathematics - Some Applications of Trigonometry

Sir, pl. answer my question

Asked by 12th March 2010, 9:47 AM
Answered by Expert

Answer:

this question has been answered earlier. but just to give you the method:

use the identity\(cosecA-cotA)(cosec A+cotA)=1

then you will get the product according to the question

as 1/9.

then find the answer.

Answered by Expert 12th March 2010, 10:11 AM

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