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Analytical Geometry

Blazing goIITian

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18 Jul 2009 12:08:58 IST

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find the equations to the circles in which the line joining the points (a,b) and (b,-a) is a chord s

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find the equations to the circles in which the line joining the points (a,b) and (b,-a) is a chord subtending an angle of 45 degrees at any point on its circumference...plz..explain....

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anuj

Blazing goIITian

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18 Jul 2009 12:44:10 IST

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equation of circle would be

x (square) + y (square)= a (square) + b (square)

anuj

Blazing goIITian

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18 Jul 2009 12:48:46 IST

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sahi hai na, yeh question ka xplanation main deta hun....................

let point be(x,y) on circle.........................................

now slope of line joining ( a,b) and (x,y) can be found and called m1

slope of line joining (b,-a) can be found and could be said m2

ab use formula

tan 45= (m2-m1/ 1+m1m2)

and get the equation................................

khush............................

shashank

Hot goIITian

Joined: 25 Dec 2008

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18 Jul 2009 12:51:56 IST

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chck out TMB Study Link on www.themonublog.blogspot.com

refer the experts

aal izz well

Blazing goIITian

Joined: 6 Jun 2009

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18 Jul 2009 12:59:30 IST

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Sorry, but the answer is wrong

anuj

Blazing goIITian

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18 Jul 2009 13:13:39 IST

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arrey dusri equation to reh hi gayi thi. it is

{x-(a+b)square} + {y-( b-a) square}=a square + b square

AB THEEK hai..............?

anuj

Blazing goIITian

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18 Jul 2009 13:32:48 IST

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ek solution tan 45 se aur ek tan 135 se aayega...............................

Sagar Saxena

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Joined: 8 Oct 2008

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20 Jul 2009 17:41:30 IST

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let the point be (h,k)

m₁ = (k-b)/ (h-a)

m₂= (k+a)/ (x-b)

Tan 45⁰ =( m₁ -m₂ ) / (1+m₁m₂)

answer is::

x²+y²= a²+b²

anuj

Blazing goIITian

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20 Jul 2009 17:47:22 IST

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sir plz check ur nudgebuk............................

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