foining the points (, u)1s. Show that the points (1. 7). (4, 2), -1, -

1.	foining the points (, u)1s. Show that the points (1. 7). (4, 2), -1, -1) and19. Find the zeros of the quadratic polynomialand verity the relationstGx2 3-7xzeros and the coefficients.If α and β are the zeros of the polynomial 6y:-Ty + z,quadratic polynomial whose zeros areandra0./ In Fig. 3, DelloQ and DF 11 OR, show that EFIIQR.ORd of a parallelogram
Answer» ∆PQR s ED \|\| QO .°. PD/DO = PE/EQ ( from formula )-------(1) ∆POR s DF \|\| OR .°. PD/DO = PF/FR ( from formula )........(2) from (1) and (2) we get PE/EQ = PF/FR .°. EF \|\| QR

foining the points (, u)1s. Show that the points (1. 7). (4, 2), -1, -1) and19. Find the zeros of the quadratic polynomialand verity the relationstGx2 3-7xzeros and the coefficients.If α and β are the zeros of the polynomial 6y:-Ty + z,quadratic polynomial whose zeros areandra0./ In Fig. 3, DelloQ and DF 11 OR, show that EFIIQR.ORd of a parallelogram

Answer»

∆PQR s ED || QO

.°. PD/DO = PE/EQ ( from formula )-------(1)

∆POR s DF || OR

.°. PD/DO = PF/FR ( from formula )........(2)

from (1) and (2) we get

PE/EQ = PF/FR

.°. EF || QR