This question was asked in Ex 13.2, 2
  1.  Why ex 13.2 (2sum) there is no video 
  2.  And how 2 ×22×0.7×1.7 will come and how 0.7 will come please let me know 
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laxmi Hanabaratti
Nov. 29, 2019, 5:24 p.m.

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