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∫3π/4 lower limit π/4 1/1+cosx dx=?

anubhab mandal , 11 Years ago
Grade
anser 1 Answers
sarim khan
let the above exp be I .
also using prop of int .
I=integration of 1/1-cosx
addinging both I’s
2I=integration of (1/1+cosx   +  1/1-cosx)
simplify
2I=integration of (2cosec^2 x.)
hope it helps
 
Last Activity: 11 Years ago
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