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RD Chapter 20 Definite Integrals Ex 20.3 Solutions

Question - 21 : -

Answer - 21 : -


For

Using Integration By parts

For

Using Integration By parts

Question - 22 : -

Answer - 22 : -


Question - 23 : -

Answer - 23 : -



Question - 24 : -

Answer - 24 : -



Question - 25 : -

Answer - 25 : -


Question - 26 : -

Answer - 26 : -


[x]=0 for 0 < x

and [x]=1 for 1< x < 2

Hence

Question - 27 : -

Answer - 27 : -


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