[" The differential equation of family of curves whose "],[" tangent form an angle of "(pi)/(4)" with the hyperbola "xy=],[c^(2)" is "]

Which of the following is not the differential equation of family of curves whose tangent from an angle of pi/4 with the hyperbola xy=c^(2) ?

Which of the following is not the differential equation of family of curves whose tangent form an angle of pi/4 with the hyperbola xy= c^2 ?

Which of the following is not the differential equation of family of curves whose tangent form an angle of pi/4 with the hyperbola xy= c^2 ?

The family of curves whose tangent form an angle (pi)/(4) with the hyperbola xy=1,is

The family of curves whose tangent form an angle (pi)/(4) with the hyperbola xy=1,is

The family of curves whose tangent form an angle (pi)/(4) with the hyperbola xy=1,is

Which of the following is not the differential equation of family of curves whose tangent form an angle of (pi)/(4) with the hyperbola xy=c^(2)?(a)(dy)/(dx)=(x-y)/(x+y)(b)(dy)/(dx)=(x)/(x-y)(c)(dy)/(dx)=(x+y)/(x-y) (d)N.O.T.

Which of the following is not the differential equation of family of curves whose tangent form an angle of pi/4 with the hyperbola xy= c^2 ? (a) dy/dx=(x-y)/(x+y) (b)dy/dx=(x)/(x-y) (c)dy/dx=(x+y)/(x-y) (d)N.O.T.

The differential equation of family of curves whose tangents form an angle of pi/4 with the hyperbola xy=k is (A) dy/dx=(x^2+ky)/(x^2-ky) (B) dy/dx=(x+k)/(x-k) (C) dy/dx=-k/x^2 (D) dy/dx=(x^2-k)/(x^2+k)

The differential equation of family of curves whose tangents form an angle of pi/4 with the hyperbola xy=k is (A) dy/dx=(x^2+ky)/(x^2-ky) (B) dy/dx=(x+k)/(x-k) (C) dy/dx=-k/x^2 (D) dy/dx=(x^2-k)/(x^2+k)