CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic

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Question 12 (OR 2nd question) - CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic - Solutions of Sample Papers for Class 10 Boards

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If the quadratic equation x 2 – 2x + k = 0 has equal roots, then value of k is ______.

If the quadratic equation x^2 – 2x + k = 0 has equal roots, then value

Question 12 (OR 2nd question) - CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic - Part 2

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Question 12 (OR 2nd question) If the quadratic equation x2 – 2x + k = 0 has equal roots, then value of k is ______. x2 – 2x + k = 0 Comparing equation with ax2 + bx + c = 0 a = 1, b = –2, c = k Since the equation has 2 equal roots, D = 0 b2 – 4ac = 0 Putting values (–2)2 – 4 × 1 × k = 0 4 – 4k = 0 4 = 4k 4k = 4 k = 4/4 k = 1

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo