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Grade: 11 
        
How did the step in the box come? How do we get 2cot^2B+cotAcotC=1 from 2cotB=cotAcotB?
one year ago

Answers : (1)

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Arun
23381 Points 
							
Dear student
 
in the above equation if you use the equation 1, i.e. put cot A + cot C = 2 cot B
 
you will get the same result
one year ago
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