# 1เลือกประเภทWhich conic section is represented by the equation x^2 - y^2 = 1?CircleEllipseParabolaHyperbola
# 2เลือกประเภทWhat is the standard equation of a circle in the Cartesian coordinate plane?x^2 + y^2 = r(x - h)^2 + (y - k)^2 = r^2x^2 + y^2 = r^2(x + h)^2 + (y + k)^2 = r^2
# 3เลือกประเภทWhat is the standard form of an ellipse centered at the origin with horizontal major axis?x^2/a^2 + y^2/b^2 = 1x^2/b^2 + y^2/a^2 = 1x^2 + y^2 = 1x^2 - y^2 = 1