[" 18.Find the sum of the series up to n terms "0.6+0.66" + "],[0.666+........]

Find the sum of the following series upto n terms 0.6+0.66+0.666+ …

Find the sum of the following series up to n terms: .6+. 66 +. 666+...

Find the sum of the series upto n terms 0.b+0.b b+0.b b b +0.b b b b+"......",AA " b" in N " and "1 le b le 9.

Find the sum of the series upto n terms 0.b+0.b b+0.b b b +0.b b b b+"......",AA " b" in N " and "1 le b le 9.

Find the sum of the series upto n terms 0.b+0.b b+0.b b b +0.b b b b+"......",AA " b" in N " and "1 le b le 9.

Find the sum of the following series up to n terms: 5+55+555+......

Find the sum of the series : 4+2+0-2-4………. To 20 terms.

Find the sum of the series 0.3+ 0.33 + 0.333+ ……to n terms