Math, asked by paulbe19, 11 months ago

1/8+1/8^2+1/8^3+1/8^4+1/8^5
any short cut method please..

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Answered by sathwika5574

4

gp formula sum=a+(r-1)^n/r-1

sathwika5574: a is 1/8,r is 5

sathwika5574: here

paulbe19: n ?

sathwika5574: sorry n is 5. and r is too 1/8

sathwika5574: sorry

sathwika5574: the formula is ax not a+

paulbe19: thank you sathwika5574

sathwika5574: it's my pleasure

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