Page 20 - BUKU KALIN (bismillah Fix)_Bab 6
P. 20
Jelas
1 1 + 1
coth −1 = ln
2 1 − 2
1 (|ln(1 + )|) − |ln(1 − )|)
coth −1 = [ ]
2
1 |ln (1 + )| |ln (1 − )|
coth −1 = [ − ]
2
1 |ln(1 + )| (1 + )
coth −1 = [ .
2 (1 + )
|ln(1 − )| (1 − )
− . ]
1 1 1
coth −1 = [ + ]
2 1 + 1 −
1 ( − 1) − ( + 1)
coth −1 = [ ]
2
2 − 1
1 −2
coth −1 = [ ]
2
2 − 1
1 1
coth −1 = − =
2
− 1 1 − 2
