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  1. Chapter 1 Class 9 Number Systems
  2. Concept wise

Transcript

Multiply 2√15 by 7√5 2√15 × 7√5 = 2 × 7 ×√15 × √5 = 14 ×√(3 × 5) × √5 = 14 ×√3 × √5 × √5 = 14 ×√3 × 5 = 𝟕𝟎√𝟑

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.