| 000 | 005260000a22001690004500 | ||
|---|---|---|---|
| 999 |
_c16198 _d16198 |
||
| 003 | KDUcat | ||
| 008 | 170316b xxu||||| |||| 00| 0 eng d | ||
| 041 | _aEnglish | ||
| 082 |
_a516.34 _bO62 |
||
| 110 |
_aOpen University of Sri Lanka _93746 |
||
| 245 | _aTrigonometric functions addition formulae | ||
| 260 |
_aNawala _bOpen University of Sri Lanka _c1985 |
||
| 300 | _a110 p. | ||
| 440 |
_aFoundation Course for science and technology _921807 |
||
| 650 |
_aTrigonometric functions _922137 |
||
| 650 |
_aAnalytic trigonometry _922138 |
||
| 942 |
_cLM _2ddc |
||