Equation of the common tangent of a cir...

Equation of the common tangent of a circle `x^2+y^2=50` and the parabola `y^2=40x` can be

A

x+y-10=0

B

x-y+10=0

C

x+y+10=0

D

x-y-10=0

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The correct Answer is:

B, C

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