please try this
if x^{2}+y^{2}=a^{2} then equation of tangent which:
1. passes through (b,0)
2.makes an area of a^{2} with the coordinate axes

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6 Answers
Amartya Kumar Mistry
·20140629 03:27:32
for the first q
the general form for the tangent of this kind of circles is
y=mx+aâˆš1+m^2
now from here on if we just put the value (b,0) on this line we will simply get the value of the slope from there you can get the eq.
for the 2 q i have a doubt that are you asking about that same tangent?
 Harsh Jaiswal no not the same tangentUpvote·0· Reply ·20140629 03:30:13
Amartya Kumar Mistry
·20140629 03:39:27
my mistake in the 1 soln it should be y=mxÂ±aâˆš1+m^2 by the way my first soln was correct or not?
Amartya Kumar Mistry
·20140629 03:46:21
ans for the 2 q is y=Â±xÂ±aâˆš2 there can be 4 such tangents