100%
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?
tan1/2 ( tan-1x + tan-1 1/x) = ?