For the circle \( x^{2}+y^{2}=r^{2} \), find the value of \( r \) for which the area enclosed by... VIDEO
For the circle \( x^{2}+y^{2}=r^{2} \), find the value of \( r \) for which the area enclosed by the tangents drawn from the point \( P(6,8) \) to the circle and the chord of contact is maximum.
[Subjective Type Question, 2003]
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions 2022-10-27 Which of the following molecules will have different values of standard molar enthalpy of format... 2022-10-27 The heat of combustion of glycogen is about 432 \( \mathrm{kJ} / \mathrm{mol} \) of carbon. Assu... 2022-10-27 Let \( a b \in R \) be such that the function \( f \) given by \( f(x)=\log |x|+b x^{2}+a x, x \... 2022-10-27 The oxidation state of bismuth in lithium bismuthate is
(a) \( +5 \)
(b) \( +3 \)
(c) \( +2 \)
(... 2022-10-27 The vectors \( \mathbf{a}, \mathbf{b} \) and \( \mathbf{a}+\mathbf{b} \) are
(a) collinear
(b) c... 2022-10-27 Value of \( \lambda \) do the planes \( x-y+z+1=0 \), \( \lambda x+3 y+2 z-3=0,3 x+\lambda y+z-2... 2022-10-27 A point \( P \) moves on the plane \( \frac{x}{a}+\frac{y}{b}+\frac{z}{c}=1 \) which is fixed. T... 2022-10-27 The distance of the point \( P(-2,3,-4) \) from the line \( \frac{x+2}{3}=\frac{2 y+3}{4}=\frac{... 2022-10-27 If the lattice point \( P(x, y, z), x, y, z0 \) and \( x, y, z \in I \) with least value of \( z... 2022-10-27 The position vectors of the four angular points of a tetrahedron \( O A B C \) are \( (0,0,0),(0... 2022-10-27 For the circle \( x^{2}+y^{2}=r^{2} \), find the value of \( r \) for which the area enclosed by... 2022-10-27 The points \( A(4,5,10), B(2,3,4) \) and \( C(1,2,-1) \) are three vertices of a parallelogram \... 2022-10-27 If the line \( \frac{x}{1}=\frac{y}{2}=\frac{z}{3} \) intersects the line \( 3 \beta^{2} x+3(1-2... 2022-10-27 Let \( P(a, b, c) \) be any point on the plane \( 3 x+2 y+z=7 \), then find the least value of \... 2022-10-27 Through a point \( P(h, k, l) \) a plane is drawn at right angles to \( O P \) to meet the coord... 2022-10-27 Equation of the line through the point \( (1,1,1) \) and intersecting the lines \( 2 x-y-z-2=0=x... 2022-10-27 Find the direction cosines of the resultant of the vectors \( (\hat{\mathbf{i}}+\hat{\mathbf{j}}... 2022-10-27 In a regular tetrahedron, if the distance between the mid-points of opposite edges is unity, its... 2022-10-27 The position vector of the point of intersection of three planes r. \( \mathbf{n}_{1}=q_{1} \), ... 2022-10-27 If \( \left|x_{1}\right|\left|y_{1}\right|+\left|z_{1}\right|,\left|y_{2}\right|\left|x_{2}\righ... 2022-10-27 In the figure, a vectors \( x \) satisfies the equation \( x-w=v \). Then, \( x \) is equal to
(...