2x²-4x+1=0 Nila alpa per bheta+ bheta per alpa

• PK

α + β = -b/a = -(-4/2) = 2

α . β = c/a = 1/2

α/β + β/α = (α² + β²) / αβ

α/β + β/α = [ (α + β)² – 2αβ ] / αβ

α/β + β/α = [ 2² – 2(1/2) ] / (1/2)

α/β + β/α = ( 4 – 1 ) / (1/2)

α/β + β/α = 6