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if (x-a)^2+(y-b)^2=c^2 then {1+((dy)/(dx...

if `(x-a)^2+(y-b)^2=c^2` then `{1+((dy)/(dx))^2}/{(d^2y)/(dx^2)} =?`

A

a

B

b

C

c

D

none of these

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The correct Answer is:
D
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