Circle And System Of Circles Question 42
Question: The slope of the tangent at the point $ (h,h) $ of the circle $ x^{2}+y^{2}=a^{2} $ is
Options:
-1
1
0
D) Depends on h
Show Answer
Answer:
Correct Answer: A
Solution:
The tangent drawn at point $ P(x,\ y) $ on the circle $ x^{2}+y^{2}=a^{2} $ is perpendicular to the line that joins the origin with point P. So required curve will be circle.
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