Example 1 - Chapter 1 Class 11 Sets
Last updated at May 29, 2018 by Teachoo
Transcript
Example 1 Write the solution set of the equation x2 + x – 2 = 0 in roster form. Solving the given equation x2 + x – 2 =0 x2 + 2x – x – 2 = 0 x(x + 2) – 1 (x + 2) = 0 (x – 1) (x + 2) = 0 So, x = 1, – 2 Therefore, the solution set of the given equation can be written in roster form as {1, –2}.
Examples
Example 1
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Example 3
Example 4
Example 5
Example 6
Example 7
Example 8
Example 9
Example 10
Example 11
Example 12
Example 13
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Example 15
Example 16
Example 17
Example 18
Example 19
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Example 21
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Example 27
Example 28
Example 29
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Chapter 1 Class 11 Sets
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About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.