Question

WILL GIVE MEDAL!!
What is the general form of the equation for the given circle?
x2+y2-8x-8y+23=0
x2+y2-8x-8y+32=0
x2+y2-4x-4y+23=0
x2+y2+4x+4y+9=0

Answer 1

I think you'd actually save time if you took a second to understand the method in one of the solutions you've already asked for, rather than expecting people to do every question for you. You also might actually learn something.

Answer 2

im with you Newton 😂 but there is no harm as long as there is medals😂

Answer 3

Here a=radius of circle
(h,k)=coordinates of centre of circle

Answer 4

(x-h)^2+(y-k)^2=a^2

Answer 5

Please help me

Answer 6

Can u tell me the distance AB=?

Answer 7

How do I do that?

Answer 8

there is something missing i thing i spent thinking 5min on it :s recheck ur ques

Answer 9

think*

Answer 10

(AB)^2=(x1-x2)^2+(y1-y2)^2

Answer 11

substitute the given points in each equation and check

Answer 12

If OAB is a right angled triangle. Then we will b able to find out radius of given circle

Answer 13

Radius a=?

Answer 14

no we cannot there are 2 unknowns sir

Answer 15

\[x^2+y^2-8x-8y+23=0\]
1. put x=4,y=7
2. put x=7,y=4 and see if it satisfies the given eq.

Answer 16

im telling you there is something missing

Answer 17

@surjithayer your just plugging in lameee we want the real math

Answer 18

if it does not satisfy then try second eq. and so on.

Answer 19

a^2+a^2=(AB)^2

Answer 20

a=?

Answer 21

I think we can solve it

Answer 22

We hv 2 equations nd we hv to fond out 2 unknown h,k

Answer 23

Just follow my procedure

Answer 24

Sorry i lying on my bed for sleep. Its midnight here

Answer 25

what about radius?
so three unknowns h,k,r and only two equations .we can prove h=k but what about r?

Answer 26

you are assuming OA perpendicular OB.

Answer 27

Ya i guess OAB is a right angled triangle

Answer 28

but it is not given it is a right angled triangle.