Question 11 MarkThe centre of circle $x^2+y^2-4 x+6 y-51=0$ is $(2,-3)$.AnswertrueView full question & answer→
Question 21 MarkThe eccentricity of hyperbola $9 x^2-16 y^2=144$ is $\frac{\sqrt{5}}{4}$.AnswerfalseView full question & answer→
Question 31 MarkThe length of latus rectum of hyperbola $\frac{x^2}{a^2}-\frac{y^2}{b^2}=$ -1 is $\frac{2 b^2}{a}$.AnswerfalseView full question & answer→
Question 41 MarkThe eccentricity of hyperbola $\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$ is $e$ $=\sqrt{\frac{a^2+b^2}{a^2}}$.AnswertrueView full question & answer→
Question 51 MarkThe length of latus rectum of ellipse $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1, a>$ $b$ is $\frac{2 b^2}{a}$.AnswertrueView full question & answer→
Question 61 MarkFor ellipse $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1, a < b$ minor axis is $x=0$.AnswerfalseView full question & answer→
Question 71 MarkThe eccentricity of ellipse $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1, a>b$ is $e=$ $\sqrt{1-\frac{b^2}{a^2}}$AnswertrueView full question & answer→
Question 81 MarkEquation of axis of parabola $x^2=-4 a y$ is $y=0$.AnswerfalseView full question & answer→
Question 91 MarkThe equation of directrix of parabola $x^2=4 a y$ is $y=a$.AnswerfalseView full question & answer→
Question 101 MarkThe coordinates of foci of parabola $y^2=-4 a x$ is $(-a$, 0 ).AnswertrueView full question & answer→