Find the values of k for which the quadratic equation 3x ^{ 2 } =ย kx + 3 = 0 has real and equal roots.
This question is similar to Ex 4.4, 2 (i) Chapter 4 Class 10 - Quadratic Equations
Last updated at Jan. 16, 2022 by
This question is similar to Ex 4.4, 2 (i) Chapter 4 Class 10 - Quadratic Equations
Transcript
Question 1 โ Choice 2 Find the values of k for which the quadratic equation 3๐ฅ2 + ๐๐ฅ + 3 = 0 has real and equal roots. Given 3๐ฅ2 + ๐๐ฅ + 3 = 0 Comparing equation with ax2 + bx + c = 0 Here, a = 3, b = ๐, c = 3 Since the equation has 2 equal roots, D = 0 b2 โ 4ac = 0 Putting values ๐^2โ4 ร 3 ร 3=0 ๐^2โ36=0 ๐^2=36 ๐ = ยฑโ36 ๐ = ยฑ๐ Hence, ๐ = ๐ or ๐ = โ๐
CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [Term 2]
Question 1 (Choice 2) You are here
Question 2 Important
Question 3
Question 4
Question 5
Question 6 (Choice 1)
Question 6 (Choice 2)
Question 7
Question 8 (Choice 1)
Question 8 (Choice 2)
Question 9
Question 10
Question 11 (Choice 1)
Question 11 (Choice 2)
Question 12
Question 13 - Case Study
Question 14 - Case Study
CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [Term 2]
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