Let $Q$ be the mirror image of the point $P(1,0,1)$ with respect to the plane $S: x+y+z=5$. If a line $L$ passing through $(1,-1,-1)$, parallel to the line $P Q$ meets the plane $S$ at $R$, then $Q R^2$ is equal to:
Hello 👋 Welcome to Competishun – India’s most trusted platform for JEE & NEET preparation. Need help with JEE / NEET courses, fees, batches, test series or free study material? Chat with us now 👇