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If the two circles x^(2) + y^(2) + ax =...

If the two circles ` x^(2) + y^(2) + ax = 0 " and " x^(2) + y^(2) = c^(2)` , where ` a, c gt 0 ` , touch each other intenally , then :

A

`a ^(2) +c ^(2) =1`

B

`a ^(2) -c ^(2) =0`

C

`a ^(2) -c ^(2) =1`

D

none of these

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The correct Answer is:
B
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MCGROW HILL PUBLICATION-CIRCLES AND SYSTEMS OF CIRCLES -EXERCISE (LEVEL 2 ( SINGLE CORRECT ANSWER TYPE QUESTIONS ))
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