Question

Find the sum to n terms
0.5+0.55+0.555+.........upto n terms.​

Answer 1

Answer:

Step-by-step explanation:

Sum of n terms = n(2a+(n-1)d)/2

therefore,

n(0.5*2+(n-1)0.5)/2

n(0.25+0.5n-0.5)/2

n(0.5n-0.25)/2

0.5n(n-0.5)/2