if alpha and beta are zeros of x²-x-1, find alpha square + beta square
Answers
Answered by
0
Answer:
∝²+β²=3
Step-by-step explanation:
∝,β are roots of eq
then, ∝+β=- (-1) 1 st eq
∝β= -1
square both sides in eq 1
∝²+β²+2∝β=1
∝²+β²-2=1
∝²+β²=3
Similar questions
Biology,
7 months ago
English,
7 months ago
Political Science,
1 year ago
English,
1 year ago
Biology,
1 year ago