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The number of common tangent to two circ...

The number of common tangent to two circle `x ^(2) +y^(2) =4 and x^(2) +y^(2) -8x+12=0` is-

A

3

B

2

C

1

D

4

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The correct Answer is:
A
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CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 7
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  4. The equation of the directrices of the hyperbola 9x^(2) -16y^(2) -18x-...

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  8. Given n(S) =20, n (A) =12, n(B)=9, n(A nnB)=4 where S is the universal...

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  13. If (x^(3))/((2x-1) (x+2) (x-3))=A+ (B)/(2x-1) +(C )/(x+2) + (D)/(x-3),...

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  19. The value of lim (x to 0) (2 ^(x) -2^(-x))/(x) is-

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