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in Mathematics by (74.0k points)
If A+B+C=`pi` and cosA cosecB cosecC + cosB cosecA cosecC + cosC cosecA cosecB = s and 1+ cot`81^@`+ cot`54^@` + cot`81^@ cot54^@`= p, then
A. p=2
B. p=1
C. s=2
D. p+s=4

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1 Answer

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by (73.8k points)
Correct Answer - A,C,D

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