just doing bit of revision and i got stuck on this circle question.
find the equations of the tangents with the gradient 2 to the circle with the equation x2 + y2 -4x - 6y -7 = 0 stating the coordinates of the points of contact.
0
circles
Started by william, Mar 17 2007 06:05 PM
1 reply to this topic
#1
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Posted 17 March 2007 - 06:05 PM
"millis times ten to the power of minus 3 yeah?"
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Posted 17 March 2007 - 06:40 PM
start by finding the equation of the radius
from there you find the line perpendicular to to the radius
I think you can go on from there.
from there you find the line perpendicular to to the radius
I think you can go on from there.
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