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CBSE Class 8 Answered

Use Vedic maths to find the products:

1. 107×93

2. 15²

Asked by HARSHICA7312 | 20 May, 2021, 12:04: PM
Expert Answer

1. 

107 × 93 

= (100 + 7)(100 - 7)   

= 1002 - 72       ......(a - b)(a + b) = a2 - b2

= 10000 - 49

= 9951


2. 15²

 52 = 25 .... (Square of the unit digit)

1 × (1 + 1) = 1 × 2 = 2  


15²=  225
Answered by Yasmeen Khan | 20 May, 2021, 01:32: PM
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