The equation of the tangent to the circle, given by $x=5 \cos \theta, y=5 \sin \theta$ at the point…
- $x-\sqrt{3} y=-5$
- $x+\sqrt{3} y=10$
- $\sqrt{3} x+y=5 \sqrt{3}$
- $\sqrt{3} x-y=0$
Solution
Here, $a=5, \theta=\frac{\pi}{3}$ $\therefore \quad$ The equation of the tangent is $\begin{aligned} & x \cos \frac{\pi}{3}+y \sin \frac{\pi}{3}=5 \\ & \Rightarrow x\left(\frac{1}{2}\right)+y\left(\frac{\sqrt{3}}{2}\right)=5 \\ & \Rightarrow x+y \sqrt{3}=10 \end{aligned}$
Asked in: MHT CET 2024 (11 May Shift 1)