The locus of a point represent by
`x=(a)/(2)((t+1)/(t)),y=(a)/(2)((t-1)/(t))`, where `t=in R-{0}`, is

The locus of a point reprersented by x=(a)/(2)((t+1)/(t)),y=(a)/(2)((t-1)/(1)), where t in R-{0}, is x^(2)+y^(2)=a^(2)(b)x^(2)-y^(2)=a^(2)x+y=a(d)x-y=a

The locus of a point reprersented by x=a/2((t+1)/t),y=a/2((t-1)/t) , where t in R-{0}, is (a) x^2+y^2=a^2 (b) x^2-y^2=a^2 (c) x+y=a (d) x-y=a

The locus of a point reprersented by x=a/2((t+1)/t),y=a/2((t-1)/1) , where t in R-{0}, is (a) x^2+y^2=a^2 (b) x^2-y^2=a^2 x+y=a (d) x-y=a

The locus of a point reprersented by x=a/2((t+1)/t),y=a/2((t-1)/1) , where t in R-{0}, is x^2+y^2=a^2 (b) x^2-y^2=a^2 x+y=a (d) x-y=a

The locus represented by x=(a)/(2)(t+(1)/(t)),y=(a)/(2)(t-(1)/(t)) is

The locus represented by x=(a)/(2)(t+(1)/(t)),y=(a)/(2)(t-(1)/(t)) is

The locus represented by x = (a)/(2) ( t + (1)/(t)), y = (a )/(2) ( t - (1)/(t)) is

The locus represented by x=a/2(t+1/t), y=a/2(t-1/t) is

The locus of the point represent by x = cos ^ 2 t, y = 2 sin t is

The equations x=(1)/(2)(t+(1)/(t)), y=(1)/(2)(t-(1)/(t)), t ne 0 , represent