A. x2+y2=9
B. x2+y2=4
C. x2+y2=-9
D. x2-y2=4
x2-y2+5x+8y-4=0 represents
The centre of the hyperbola 9x2-16y2+72x-32y-16=0 is
Tangents are drawn from the Point (-2, -1) to the hyperbola 2x2-3y2=6. Their equations are
The locus of the midpoint its of chords of the hyperbola x2/a2-y2/b2=1 which pass through the positive end of the transverse axis is
The locus of the midpoint its of chords of x2/a2-y2/b2=1 which pass through the focus (ae, 0) is
The point of contact of 5x+6y+1=0 to the hyperbola 2x2-3y2 =2 is