Can anyone help me solve this question.I cannot seem to figure it out.
Q.Find an equation of the chord of contact of the tangents drawn from (4,5) to the circle:
I forgot to give you the general form of the quation of the polar line.
If P(a,b) is any point outside of the circle x^2+y^2+Ax+By+C=0 then the equation of the polar line is ax+by+A(x+a)/2+B(y+b)/2 +C=0 .
In your case a=4,b=5 A=-4 B= 6 and C=21/2 .Apply this to find directly he equation that John stated in his post....