Circle And System Of Circles Question 43

Question: If the straight line $ 4x+3y+\lambda =0 $ touches the circle $ 2(x^{2}+y^{2})=5 $ , then $ \lambda $ is

Options:

0

1

-1

D) Depends on the h

Show Answer

Answer:

Correct Answer: C

Solution:

$ hx+hy-a^{2}=0 $ has slope $ -\frac{h}{k} $ .

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