/ _______ \ 2 | / a - b tan(x)| ------------*atan| / ----- *------| _________ \\/ a + b 2 / / 2 2 \/ a - b
(2/sqrt(a^2 - b^2))*atan(sqrt((a - b)/(a + b))*(tan(x)/2))
_______ / 2 \ / a - b |1 tan (x)| 2* / ----- *|- + -------| \/ a + b \2 2 / ---------------------------------- / 2 \ _________ | tan (x)*(a - b)| / 2 2 |1 + ---------------|*\/ a - b \ 4*(a + b) /
_______ / / 2 \ \ / a - b / 2 \ | \1 + tan (x)/*(a - b) | -8* / ----- *\1 + tan (x)/*|-1 + -----------------------------|*tan(x) \/ a + b | / 2 \ | | | tan (x)*(a - b)| | | |4 + ---------------|*(a + b)| \ \ a + b / / ------------------------------------------------------------------------ / 2 \ _________ | tan (x)*(a - b)| / 2 2 |4 + ---------------|*\/ a - b \ a + b /
/ 2 2 \ _______ | / 2 \ 2 / 2 \ / 2 \ 2 2 | / a - b / 2 \ | 2 \1 + tan (x)/ *(a - b) 6*tan (x)*\1 + tan (x)/*(a - b) 4*\1 + tan (x)/ *(a - b) *tan (x)| 8* / ----- *\1 + tan (x)/*|1 + 3*tan (x) - ----------------------------- - ------------------------------- + ---------------------------------| \/ a + b | / 2 \ / 2 \ 2 | | | tan (x)*(a - b)| | tan (x)*(a - b)| / 2 \ | | |4 + ---------------|*(a + b) |4 + ---------------|*(a + b) | tan (x)*(a - b)| 2 | | \ a + b / \ a + b / |4 + ---------------| *(a + b) | \ \ a + b / / ------------------------------------------------------------------------------------------------------------------------------------------------- / 2 \ _________ | tan (x)*(a - b)| / 2 2 |4 + ---------------|*\/ a - b \ a + b /
/ 2 2 \ _______ | / 2 \ 2 / 2 \ / 2 \ 2 2 | / a - b / 2 \ | 2 \1 + tan (x)/ *(a - b) 6*tan (x)*\1 + tan (x)/*(a - b) 4*\1 + tan (x)/ *(a - b) *tan (x)| 8* / ----- *\1 + tan (x)/*|1 + 3*tan (x) - ----------------------------- - ------------------------------- + ---------------------------------| \/ a + b | / 2 \ / 2 \ 2 | | | tan (x)*(a - b)| | tan (x)*(a - b)| / 2 \ | | |4 + ---------------|*(a + b) |4 + ---------------|*(a + b) | tan (x)*(a - b)| 2 | | \ a + b / \ a + b / |4 + ---------------| *(a + b) | \ \ a + b / / ------------------------------------------------------------------------------------------------------------------------------------------------- / 2 \ _________ | tan (x)*(a - b)| / 2 2 |4 + ---------------|*\/ a - b \ a + b /