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00:00 - 00:59 | find the equation of the circle which served every circle X square + Y square - 3 x minus 6 Y + 14 is equal to zero and X square + Y square + 2 x minus 6 Y + 9 is equal to zero want to see what they need to find days we need to find out an equation which cuts all these recycle please all Circus possibly be using the radical axis equation to find out the medical centre the general form of writing here the general form of the first two circles this one and this one will be to minus 3 is equal to zero if I just put the equation share this will be X square + Y square - 3 |

01:00 - 01:59 | minus 6 Y + 4 3 in 1 bracket and the equation of second circle X square + Y square minus x minus 4 Y + 8 which is equal to zero after solving there the equation will be X + Y - 3 is equal to zero let me put it as one of the first two circles so for the next two circles the other two circles the equation will be applied the same criteria which is as 1 -2 this will be xsquare + Y square minus x minus 4 Y + a |

02:00 - 02:59 | and X square + Y square + 2 x minus 6 Y + 9 is equal to zero is equal to zero now what we need to do if we need to separate it and the final equation will be free x minus 2 Y + 1 is equals to zero let me ne M equations now I need to find out the values of X and Y so that I can find out the centre of the circle so let me just solve this two equations using the elimination method the elimination method says that we need to the just equal the position of the variable so let me X this equation by to this equation will be Kuwait + 2 Y - 6 is equal to zero and the other equation we have is 3 x minus 2 Y + 1 is equal to zero |

03:00 - 03:59 | dekho by just opposing the sign or we can just at them ok we don't need to opposite design as we have Plus and minus diesel cancelled out and this will be 5x and is equals to if I just put this on to the right hand side this is because of the positive and the value of x will be 195 put one in the any of the equation the value of Y will be to do we have our Centre which is the centre will be 12 what I need to find days we need to find out the length of the tangent so the basic formula to find out the length of the tangent is is equal to root under X square + 2 gx1 |

04:00 - 04:59 | plus two fy1 + c is putting the values here we can find out the value of x sorry this will be one winner will be for this 312 and this will be body just solving a doubt we will get the value of Rs to therefore we have all the values we have the values of X and the values of Y and also are the required permission required equation will be the judge on the basic form which is the general form which is Y minus y square is equal to R square foot in the values air we have x11 |

05:00 - 05:59 | MI Y1 which is to where are square solving it it will be a minus b whole square which will be expire + 1 - 2 X + Y square + 4 minus 4 Y is equal to square let me write down the basic form also ke that no confusion will be at this is a minus b whole square which will always be equal to a square + b square minus 2 a vichar use no further if I just call this the final equation of the final answer will be X square + Y square - 2 x minus 4 Y and this will be 5 is equals to sorry + 5 is equal to R square is |

06:00 - 06:59 | square and if I just take this value of the left hand side become 1 is equal to zero this is the final answer thank you |