Gupta, Subhash Chandra <br/><br/>
Complex trigonometry and theory of equations / 
Subhash Chandra Gupta 
 - New Delhi :  Dominant,  c2023. 
 - viii, 259 pages :   illustrations ;   24 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>9789394080065 (cb.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry