Check sibling questions

Question 7 (MCQ) - Miscellaneous - Chapter 6 Class 12 Application of Derivatives

Last updated at May 29, 2023 by

Misc 23 - Normal to x2 = 4y passing (1,2) is (a) x + y = 3

Misc. 23 - Chapter 6 Class 12 Application of Derivatives - Part 2
Misc. 23 - Chapter 6 Class 12 Application of Derivatives - Part 3

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class

Book a free demo

Transcript

Misc 23 The normal to the curve π‘₯^2=4𝑦 passing (1, 2) is (𝐴) π‘₯ + 𝑦 = 3 (𝐡) π‘₯ – 𝑦 = 3 (𝐢) π‘₯ + 𝑦 = 1 (𝐷) π‘₯ – 𝑦 = 1Since (1, 2) lies on normal, it will satisfy its equation Option 1: 𝒙+π’š=πŸ‘ Putting π‘₯=1 & 𝑦=2 in equation 1 +2=3 3=3 This is true So, it is the equation of Normal Option 2: π’™βˆ’π’š=πŸ‘ Putting π‘₯=1 & 𝑦=2 in equation 1 βˆ’2=3 βˆ’1=3 This is false So, it is not equation of Normal Option 3: 𝒙+π’š=𝟏 Putting π‘₯=1 & 𝑦=2 in equation 1 +2=1 3=1 This is false So, it is not equation of Normal Option 4: π’™βˆ’π’š=𝟏 Putting π‘₯=1 & 𝑦=2 in equation 1 βˆ’1=1 0=1 This is false So, it is not equation of Normal Hence, Correct Answer is (A)

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.