Q:

Let the equation of a curve is given in implicit form  as y = tan(x + y). Then d2y/dx2 in terms of y is :

(A)   2(1 + y2)2/y2

(B)   2(1 + y2)/y6

(C)   -2(1 + y2)/y6

(D)   -2(1 + y2)/y5

UPSEE

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