Question

6. a, ß are roots of y2 - 2y - 7 = 0 find,
(1) a2 + B2 (2) a² + ß²​

Answer 1

Answer:

(y-2)^2= 7+4=11

y=2+/_ root 11

1. A^2 +B^2= 1+4=5

2. root1^2+root2^2= 2( 4+11)=30