Try another version of this question Find the sum ` sum_(n=41)^(90) 2 n =` Get help: VideoBox 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)Enter DNE for Does Not Exist, oo for Infinity 6550
Try another version of this question
Get help: Video
Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)Enter DNE for Does Not Exist, oo for Infinity