वृत्तों x^(2)+y^(2)-4x-6y-12=0 तथा x^...

वृत्तों `x^(2)+y^(2)-4x-6y-12=0` तथा `x^(2)+y^(2)+6x+18y+26=0` की उभयनिष्ठ स्पर्श रेखाओं की संख्या होगी :

A

1

B

2

C

3

D

4

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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