1.

0.2 + 0.22 + 0.222+ …. upto n terms is equal to

Answer»

`((2)/(9)) - ((2)/(81) ) ( 1-10^(-N) ) `
`n- ((1)/( 9) ) (1-10^(-n) )`
`((2)/( 9))[n-((1)/( 9))(1-10^(-n)) ]`
`(2)/( 9) `

Answer :C


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