Ex 4.3, 2 (iv) - Chapter 4 Class 10 Quadratic Equations (Term 2)
Last updated at Aug. 3, 2021 by Teachoo
Ex 4.3
Ex 4.3, 1 (i)
Deleted for CBSE Board 2022 Exams
Ex 4.3, 1 (ii) Important Deleted for CBSE Board 2022 Exams
Ex 4.3, 1 (iii) Deleted for CBSE Board 2022 Exams
Ex 4.3, 1 (iv) Important Deleted for CBSE Board 2022 Exams
Ex 4.3, 2 (i)
Ex 4.3, 2 (ii)
Ex 4.3, 2 (iii)
Ex 4.3, 2 (iv) Important You are here
Ex 4.3, 3 (i) Important
Ex 4.3, 3 (ii)
Ex 4.3, 4
Ex 4.3, 5
Ex 4.3, 6
Ex 4.3, 7 Important
Ex 4.3, 8 Important
Ex 4.3, 9 Important
Ex 4.3, 10 Important
Ex 4.3, 11
Chapter 4 Class 10 Quadratic Equations (Term 2)
Serial order wise
Transcript
Ex 4.3 ,2 Find the roots of the quadratic equation using quadratic formula (iv) 2x2 + x + 4 = 0 2x2 + x + 4 = 0 Comparing equation with ax2 + bx + c = 0 So, a = 2, b = 1, c = 4 We know that D = b2 4ac D = 12 4 2 4 D = 1 32 D = 31 Hence roots to equation are x = ( )/2 Putting values x = ( 1 ( 31))/2 Since there is a negative number in the root, therefore D will not have any real value. So, there are no real roots for the given equation.
