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Questions (4)
cot^-1(2tan(cos^-18/17))+tan^-1(2tan(sin^-18/17))=tan^-1300/161
1 answer
809 views
if sin^-1>cos^-1 then x belongs to which interval
1 answer
375 views
tan^-1a+tan^-1b+tan^-1c=pi,yhen prove that a+b+c=abc
0 answers
427 views
tan^-1(x/√a^2-x^2)=sin^-1(x/a)
0 answers
351 views
