What is the symmetric form of the line through (1,2,3) with direction ratios (2,1,-1)?
Point (1,2,3) और direction ratios (2,1,-1) वाली line का symmetric form क्या है?
Show answer and explanation
Correct Answer
A. (x-1) / 2=(y-2) / 1=(z-3) / -1
ExplanationStep 1: Identify symmetric form of a line. Step 2: For point (x₁,y₁,z₁) and ratios a,b,c, use (x-x₁)/a=(y-y₁)/b=(z-z₁)/c. Step 3: Memory tip: Subtract the point coordinates in numerators.
Step 1: अवधारणा line symmetric form है। Step 2: point (x₁,y₁,z₁) और ratios a,b,c के लिए (x-x₁)/a=(y-y₁)/b=(z-z₁)/c। Step 3: Memory tip: point को numerator में subtract करें।