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Slide11.JPG

Slide12.JPG

  1. Chapter 10 Class 11 Straight Lines
  2. Serial order wise

Transcript

Ex 10.1, 3 Find the distance between P (x1, y1) and Q (x2, y2) when: (i) PQ is parallel to the y-axis. Since PQ is parallel to y-axis x1 = x2. Distance PQ = โˆš("(" ๐‘ฅ_2โˆ’๐‘ฅ_1 ")2 " +"(" ๐‘ฆ_2โˆ’๐‘ฆ_1 ")2" ) = โˆš("(" ๐‘ฅ_2โˆ’๐‘ฅ_2 ")2 " +"(" ๐‘ฆ_2โˆ’๐‘ฆ_1 "2" ) = โˆš((๐‘ฆ_2โˆ’๐‘ฆ_1 "2" )+0) = โˆš("(" ๐‘ฆ_2โˆ’๐‘ฆ_1 ")2" ) = ยฑ (๐‘ฆ_2โˆ’๐‘ฆ_1) = |"y2" โˆ’"y1" | Ex 10.1, 3 Find the distance between P (x1, y1) and Q (x2, y2) when: (ii) PQ is parallel to the x-axis. Since PQ is parallel to x-axis y1 = y2. Distance PQ = โˆš("(" ๐‘ฅ_2โˆ’๐‘ฅ_1 "2" +"(" ๐‘ฆ_2โˆ’๐‘ฆ_1 ")2" ) = โˆš("(" ๐‘ฅ_2โˆ’๐‘ฅ_1 ")2 " +"(" ๐‘ฆ_1โˆ’๐‘ฆ_1 ")2" ) = โˆš("(" ๐‘ฅ_2โˆ’๐‘ฅ_1 ")2" +0) = โˆš("(" ๐‘ฅ_2โˆ’๐‘ฅ_1 ")2" ) = ยฑ (๐‘ฅ_2โˆ’๐‘ฅ_1) = |๐’™_๐Ÿโˆ’๐’™_๐Ÿ |

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.