0
let 1+2+4+8+...... =s
s= 1+2(1+2+4+8+........)
s=1+2s
s=-1
but sum of infinite terms cannot be -1
so, what's the answer
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∙ 13y ago
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What is 1 7 8 plus 2 3 8?
1 and 7/8 + 2 and 3/8 = 4 and 1/4
What is 1 2 4 plus 6 8?
1 and 2/4 + 3/4 = 2 and 1/4
What is the sum of one half plus one quarter plus one eighth?
7/8 1/2 + 1/4 + 1/8 = 4/8 + 2/8 + 1/8 = 7/8
What is 1 plus 1 plus 2 plus 4 plus 8 plus 16?
32
What is 1 plus 2 plus 3 plus 4 plus 5 plus 6 plus 7 plus 8 plus 9?
1+2+3+4+5+6+7+8+9=37
What is 1 over 8 plus 1 over 4 plus 1 over 2?
1/8 plus 1/4 plus 1/2 = 7/8 or 0.875
What is 1 over 2 plus 2 over 8?
1/2 plus 2/8 = 4/8 + 2/8 = 6/8 = 3/4
1 1/8 plus 1 1/8 =?
2 1/4
What is sum of the following1 plus 2 plus 4 plus 8 plus 16 plus?
The sum of the numbers given is 31. 1 + 2 + 4 + 8 + ... + 2n = 2n+1 - 1
What is 1 7 8 plus 2 3 8?
1 and 7/8 + 2 and 3/8 = 4 and 1/4
What is 1 2 4 plus 6 8?
1 and 2/4 + 3/4 = 2 and 1/4
What is the sum of one half plus one quarter plus one eighth?
7/8 1/2 + 1/4 + 1/8 = 4/8 + 2/8 + 1/8 = 7/8
What is 1 fourth plus 1 eighth plus 1 eighth?
To aid in solving this sum, 1/4 can be expanded to 2/8. So that makes 2/8 + 1/8 + 1/8 which equals 4/8 or 1/2.
What is 2 and 1 over 4 plus 3 and 7 over 8?
((2 plus (1 over 4)) plus 3) plus (7 over 8) = 6.12500
What is 1 plus 1 plus 2 plus 4 plus 8 plus 16?
32
What is 1 plus 1 plus 2 plus 3 plus 4 plus 5 plus 6 plus 7 plus 8 plus 9?
1 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 46
What is 1 over 4 plus 1 over 4 2 over 8?
1/4 + 1/4 = 2/42/4 + 2/8 = 3/4
