Sridhara (c. 870, India – c. 930 India) was an Indian mathematician. He was born in Hooghly district. His father's name was Baladevacharya and mother's name was Acchoka.
He Found that Formula :-
ax^2 + abx + c = 0
4a^2x^2 + 4a^2bx + 4ac = 0 ( Multiply by 4a )
4a2x2 + 4a2bx + 4ac + b2 = 0 + b2 { Add b^2 }
(4a^2x^2 + 4a^2bx + b^2 )+ 4ac = b^2
(2ax + b)(2ax + b)+ 4ac = b^2
(2ax + b)(2ax + b)+ 4ac - b^2= 0
(2ax + b)^2 = b2 - 4ac
( D= b^2-4ac )
(2ax + b)^2 = (√D)^2
(2ax + b)^2 - (√D)^2 = 0
(2ax + b - √D) (2ax + b + √D) = 0
(2ax + b - √D) = 0 (2ax + b + √D) = 0
2ax + b - √D = 0 2ax + b + √D = 0
x=(-b - √D)/2a x=(-b + √D)/2a
x= (-b - √(b^2-4ac))/2a x= (-b + √(b^2-4ac))/2a (∵D= b^2-4ac )
α = (-b - √(b^2-4ac))/2a β = (-b + √(b^2-4ac))/2a
Bless my soul
Herc was on a roll
Person of the week in every Greek opinion poll
What a pro
Herc could stop a show
Point him at a monster and you're talking SRO
He was a no one
A zero, zero
Now he's a honcho
He's a hero
Here was a kid with his act down pat
From zero to hero in no time flat
Zero to hero just like that
When he smiled
The girls went wild with
Oohs and aahs
And they slapped his face
On ev'ry vase
(On ev'ry "vahse")
From appearance fees and royalties
Our Herc had cash to burn
Now nouveau riche and famous
He could tell you
What's a Grecian urn?
Say amen
There he goes again
Sweet and undefeated
And an awesome 10 for 10
Folks lined up
Just to watch him flex
And this perfect package
Packed a pair of pretty pecs
Hercie, he comes
He sees, he conquers
Honey, the crowds were
Going bonkers
He showed the moxie brains, and spunk
From zero to hero a major hunk
Zero to hero and who'da thunk
Who put the glad in gladiator?
Hercules!
Whose daring deeds are great theater?
Hercules
Is he bold?
No one braver
Is he sweet
Our fav'rite flavor
Hercules, Hercules ...
Bless my soul
Herc was on a roll
Undefeated
Riding high
And the nicest guy
Not conceited
He was a nothin'
A zero, zero
Now he's a honcho
He's a hero
He hit the heights at breackneck speed
From zero to hero
Herc is a hero
Now he's a hero
Yes indeed!
[originally by Black Sabbath]
Accept your fate that you're second rate
Sit there and watch it all burn down
Turn your head to the TV channel
But someone else's hand's on the control panel
What you gonna be, what you gonna see
Zero the Hero
What you gonna be, who you gonna be (see?)
Zero the Hero
Your life is a six lane highway to nowhere
The ball is in your hands and your heads full of nothing
Nothing's/Life is easy for you
I don't even have to talk to you
Repeat Chorus
Repeat 1st Verse
Bless my soul
Herc was on a roll
Person of the week in evry Greek opinion poll
What a pro
Herc could stop a show
Point him at a monster and you're talking SRO
He was a no one
A zero, zero
Now he's a honcho
He's a hero
Here was a kid with his act down pat
From zero to hero in no time flat
Zero to hero just like that
When he smiled
The girls went wild with
oohs and aahs
And they slapped his face
On ev'ry vase
(on ev'ry "vase")
From appearance fees and royalties
Our Herc had cash to burn
Now nouveau riche and famous
He could tell you
What's a Grecian urn?
Say amen
There he goes again
Sweet and undefeated
And an awesome 10 for 10
Folks lined up
Just to watch him flex
And this perfect package
packed a pair of pretty pecs
Hercie, he comes
He sees, he conquers
Honey, the crowds were
Going bonkers
He showed the moxie brains, and spunk
From zero to hero a major hunk
Zero to hero and who'da thunk
Who put the glad in gladiator?
Hercules!
Whose daring deeds are great theater?
Hercules
Is he bold?
No one braver
Is he sweet
Our fav'rite flavor
Hercules, Hercules ...
Bless my soul
Herc was on a roll
Undefeated
Riding high
And the nicest guy
not conceited
He was a nothin'
A zero, zero
Now he's a honcho
He's a hero
He hit the heights at breackneck speed
From zero to hero
Herc is a hero
Now he's a hero
Saare taare tood lai aava tere kadmach rakhdiya mein ik wari sadi kuul tu aaja aur na mangga tere ko nu mein hunjo vo vich doop na saanu apneh ankhiya churakay lay ve tere dil vich mein hund rehna yar terai jeena mein aaja ve mahiya *8.
Vaadeh karke tud gaye ye ladki galti ho ee na sadi rach k galiya pe k jee naiyo lagda bin tere billo kuch nahi sajda tere ishq vich palang ve saanu apnay rang vich rang de tere dil vich mein hund rehna yar tere jeena ve mein kah aaja ve mahiya*8.
Bless my soul
Herc was on a roll
Person of the week in evry Greek opinion poll
What a pro
Herc could stop a show
Point him at a monster and you're talking SRO
He was a no one
A zero, zero
Now he's a honcho
He's a hero
Here was a kid with his act down pat
From zero to hero in no time flat
Zero to hero just like that
When he smiled
The girls went wild with
oohs and aahs
And they slapped his face
On ev'ry vase
(on ev'ry 'vase')
From appearance fees and royalties
Our Herc had cash to burn
Now nouveau riche and famous
He could tell you
What's a Grecian urn?
Say amen
There he goes again
Sweet and undefeated
And an awesome 10 for 10
Folks lined up
Just to watch him flex
And this perfect package
packed a pair of pretty pecs
Hercie, he comes
He sees, he conquers
Honey, the crowds were
Going bonkers
He showed the moxie brains, and spunk
From zero to hero a major hunk
Zero to hero and who'da thunk
Who put the glad in gladiator?
Hercules!
Whose daring deeds are great theater?
Hercules
Is he bold?
No one braver
Is he sweet
Our fav'rite flavor
Hercules, Hercules ...
Bless my soul
Herc was on a roll
Undefeated
Riding high
And the nicest guy
not conceited
He was a nothin'
A zero, zero
Now he's a honcho
He's a hero
He hit the heights at breackneck speed
From zero to hero
Herc is a hero
Now he's a hero
Yes indeed!
Bless my soul
Herc was on a roll
Person of the week in every Greek opinion poll
What a pro
Herc could stop a show
Point him at a monster and you're talking SRO
He was a no one
A zero, zero
Now he's a honcho
He's a hero
Here was a kid with his act down pat
From zero to hero in no time flat
Zero to hero just like that (snaps)
When he smiled
The girls went wild with
Oohs and aahs
And they slapped his face
On ev'ry vase
(On ev'ry "vahse")
From appearance fees and royalties
Our Herc had cash to burn
Now nouveau riche and famous
He could tell you
What's a Grecian urn?
Say amen
There he goes again
Sweet and undefeated
And an awesome 10 for 10
Folks lined up
Just to watch him flex
And this perfect package
Packed a pair of pretty pecs
Hercie, he comes
He sees, he conquers
Honey, the crowds were
Going bonkers
He showed the moxie brains, and spunk
From zero to hero a major hunk
Zero to hero and who'da thunk
Who put the glad in gladiator?
Hercules!
Whose daring deeds are great theater?
Hercules
Isn't he bold?
No one braver
Is he sweet
Our fav'rite flavor
Hercules, Hercules ...
Bless my soul
Herc was on a roll
Undefeated
Riding high
And the nicest guy
Not conceited
He was a nothin'
A zero, zero
Now he's a honcho
He's a hero
He hit the heights at breakneck speed
From zero to hero
Herc is a hero
Now he's a hero
Bless my soul
Herc was on a roll
Person of the week in ev'ry Greek opinion poll
What a pro
Herc could stop a show
Point him at a monster
And you're talkin' S.R.O.
He was a no one
A zero, zero
Now he's a honcho
He's a hero
Here was a kid with his act down pat
From zero to hero--
In no time flat
Zero to hero--
Just like that
When he smiled
The girls went wild
With oohs and aahs
And they slapped his face
On ev'ry vase
(On ev'ry "vahse")
From appearance fees and royalties
Out Herc had cash to burn
Now nouveau riche an' famous
He could tell you
What's a Grecian urn?
Say amen
There he goes again
Sweet and undefeated
And an awesome 10 for 10
Folks lined up
Just to watch him flex
And this perfect package
Packed a pair of pretty pecs
Hercie, he comes, he sees, he conquers
Honey, the crowds were going bonkers
He showed the moxie brains and spunk
From zero to hero--
A major hunk
Zero to hero--
And who'da thunk?
Who put the glad in gladiator?
Hercules!
Whose daring deeds are great the-a-ter?
Hercules!
Is he bold?
No one braver
Is he sweet?
Our fav'rite flavor
Hercules, Hercules
Bless my soul
Herc was on a roll
Undefeated
Riding high
And the nicest guy
Not conceited
He was a nothin'
A zero, zero
Now he's a honcho
He's a hero
He hit the heights at breakneck speed
From zero to hero
Herc is a hero
Now he's a hero
Bless my soul
Herc was on a roll
Person of the week in every Greek opinion poll
What a pro
Herc could stop a show
Point him at a monster and you're talking SRO
He was a no one
A zero, zero
Now he's a honcho
He's a hero
Here was a kid with his act down pat
From zero to hero in no time flat
Zero to hero just like that (snaps)
When he smiled
The girls went wild with
Oohs and aahs
And they slapped his face
On ev'ry vase
(On ev'ry "vahse")
From appearance fees and royalties
Our Herc had cash to burn
Now nouveau riche and famous
He could tell you
What's a Grecian urn?
Say amen
There he goes again
Sweet and undefeated
And an awesome 10 for 10
Folks lined up
Just to watch him flex
And this perfect package
Packed a pair of pretty pecs
Hercie, he comes
He sees, he conquers
Honey, the crowds were
Going bonkers
He showed the moxie brains, and spunk
From zero to hero a major hunk
Zero to hero and who'da thunk
Who put the glad in gladiator?
Hercules!
Whose daring deeds are great theater?
Hercules
Isn't he bold?
No one braver
Is he sweet
Our fav'rite flavor
Hercules, Hercules ...
Bless my soul
Herc was on a roll
Undefeated
Riding high
And the nicest guy
Not conceited
He was a nothin'
A zero, zero
Now he's a honcho
He's a hero
He hit the heights at breakneck speed
From zero to hero
Herc is a hero
Now he's a hero