Math, asked by utkarsh6797, 1 year ago

if alpha and beta are zeros of x²-x-1, find alpha square + beta square

Answers

Answered by arunima180901
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

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