AP EAPCET 2021 - 19th August Evening Shift | Circle Question 26 | Mathematics

If $$P(-9,-1)$$ is a point on the circle $$x^2+y^2+4 x+8 y-38=0$$, then find equation of the tangent drawn at the other end of the diameter drawn through $$P$$

$$7 x-3 y=60$$

$$7 x-3 y=56$$

$$7 x+3 y=56$$

$$7 x+3 y=60$$

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-0

Find the equation of a circle whose radius is 5 units and passes through two points on the $$X$$-axis, which are at a distance of 4 units from the origin

$$x^2+y^2-6 x-25=0$$

$$x^2+y^2-6 y-25=0$$

$$x^2+y^2+6 y-16=0$$

$$x^2+y^2+6 x-16=0$$

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-0

If a foot of the normal from the point $$(4,3)$$ to a circle is $$(2,1)$$ and $$2 x-y-2=0$$, is a diameter of the circle, then the equation of circle is

$$x^2+y^2+2 x+1=0$$

$$x^2+y^2+2 x-1=0$$

$$x^2+y^2-2 x-1=0$$

$$2\left(x^2+y^2\right)-2 x-1=0$$

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-0

The length of the tangent from any point on the circle $$(x-3)^2+(y+2)^2=5 r^2$$ to the circle $$(x-3)^2+(y+2)^2=r^2$$ is 16 units, then the area between the two circles in square units is

$$32 \pi$$

$$4 \pi$$

$$8 \pi$$

$$256 \pi$$

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