What is the length of latus rectum of parabola x² = 20y?
परवलय x² = 20y का latus rectum length कितना है?
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Correct Answer
C. 20
ExplanationStep 1: Compare with x²=4ay. Step 2: 4a=20 so latus rectum length is 4a=20. Step 3: In standard form coefficient gives latus rectum length.
Step 1: x²=4ay से compare करें। Step 2: 4a=20 है इसलिए latus rectum length 4a=20 होगा। Step 3: Standard form में coefficient ही latus rectum length देता है।