Try another version of this question Find the value of the summation.
Write out the summation:
Give the total sum: Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4) Box 2: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
`sum_(i=1)^4 2^i`
Enter DNE for Does Not Exist, oo for Infinity `2+4+8+16`
Enter DNE for Does Not Exist, oo for Infinity 30