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| 1. |
Alfa and bita are zeros of x2-5x+k such that Alfa -bita =1 |
| Answer» (Alfa+bita)=5 and alfa ×bita=K. Also alfa - bita =1(given) (alfa +bita)2-(alfa - bita)2 =4alfa×bita 5ka square - 1ka square =4alfa×bita 4alfa ×bita =(25-1)=24Alfa ×bita =6Hence, k=6. | |