cot(pie/20)cot(3pie/20)cot(5pie/20)cot(7pie/20)cot(9pie/20) is..
-1
1/2
0
1
cot(pie/20)cot(3pie/20)cot(5pie/20)cot(7pie/20)cot(9pie/20) is..
-1
1/2
0
1
hemant kadam , 13 Years ago
Grade
Trigonometry> trigono equation...
2 AnswersChetan Mandayam Nayakar
cot(pi/20)cot(9pi/20)=1=cot(3pi/20)cot(7pi/20)=cot(5pi/20)
Approved Last Activity: 13 Years ago
hemant kadam
thnx bro..
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