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11TH · MATH

Question 1

menu_bookSolutionmenu_bookTheorymenu_book•(i)3+6+9+⋯+a203 + 6 + 9 + \cdots + a_{20}3+6+9+⋯+a20​menu_book•(ii)45+5+65+⋯+an\dfrac{4}{\sqrt{5}} + \sqrt{5} + \dfrac{6}{\sqrt{5}} + \cdots + a_n5​4​+5​+5​6​+⋯+an​
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school

11TH · MATH

Question 1

menu_bookSolutionmenu_bookTheorymenu_book•(i)3+6+9+⋯+a203 + 6 + 9 + \cdots + a_{20}3+6+9+⋯+a20​menu_book•(ii)45+5+65+⋯+an\dfrac{4}{\sqrt{5}} + \sqrt{5} + \dfrac{6}{\sqrt{5}} + \cdots + a_n5​4​+5​+5​6​+⋯+an​
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