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Ex 5.3, 10 - Class 11 CBSE - Solve x2 + x/root 2 + 1 = 0 - Ex 5.3

Ex 5.3, 10 - Chapter 5 Class 11 Complex Numbers - Part 2

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Transcript

Ex 5.3, 10 Solve the equation 2 + x/ 2 + 1=0 x2 + x/ 2 + 1 = 0 Multiply the equation by 2 2 ( ^2+ / 2+1) = 2 0 2 x2 + 2 / 2 + 2 1 = 0 2x2 + x + 2 = 0 The above equation is of the form 2 + + = 0 Where a = 2 , b = 1, and c = 2 = ( ( ^2 4 ))/2 = ( 1 (1^2 4 (2 ) 2) )/(2 2) = ( 1 (1 4 2))/(2 2) = ( 1 (1 8))/(2 2) = ( 1 ( 7))/(2 2) = ( 1 ( 1 7))/(2 2) = ( 1 7 ( 1))/(2 2) = ( 1 7 )/(2 2) Thus, = ( 1 7 )/(2 2)

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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.