If
r1
and
r2
are the roots of
ax2 + bx + c = 0,
show that
r1...
Mathematics, 08.02.2021 01:00 nik2lit
If
r1
and
r2
are the roots of
ax2 + bx + c = 0,
show that
r1r2 =
c
a
.
If
r1
and
r2
are roots of
ax2 + bx + c = 0,
then their values are
r1 =
βb +
b2 β 4ac
2a
and
r2 =
βb β
b2 β 4ac
2a
r1r2
=
+
b2 β 4ac
2a
Β·
βb β
b2 β 4ac
2a
=
+
b2 β 4ac
Β·
βb β
b2 β 4ac
4a2
=
2
β
b2 β 4ac
2
4a2
=
β (b2 β 4ac)
4a2
=
4a2
=
c
a
Answers: 1
Mathematics, 21.06.2019 15:30
Normal yaΔmur ile asit yaΔmuru arasΔ±ndaki fark nedir
Answers: 3
Mathematics, 21.06.2019 16:00
Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.
Answers: 1
Mathematics, 21.06.2019 18:00
Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review
Answers: 1
Mathematics, 08.03.2021 23:10
Mathematics, 08.03.2021 23:10
History, 08.03.2021 23:10
Mathematics, 08.03.2021 23:10
Mathematics, 08.03.2021 23:10
English, 08.03.2021 23:10
Physics, 08.03.2021 23:10
English, 08.03.2021 23:10
Mathematics, 08.03.2021 23:20
Mathematics, 08.03.2021 23:20
Mathematics, 08.03.2021 23:20
History, 08.03.2021 23:20
English, 08.03.2021 23:20
Mathematics, 08.03.2021 23:20