Feeds
已解决
Sum of series IX
What is the sum of the following sequence: Σ 1/k! for k=1...n for different n?
2 years 前
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Sum of series VII
What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?
2 years 前
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Sum of series VI
What is the sum of the following sequence: Σk⋅k! for k=1...n for different n?
2 years 前
已解决
Sum of series V
What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?
2 years 前
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Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?
2 years 前
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Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?
2 years 前
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Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?
2 years 前
已解决
String Logic 6
Examples: 'CAT' --> 216 'DOG' --> 218 'ROSY' --> 333 'MATLAB' --> 433 'TRUST' --> 418 'MOSTLY' --> 488
2 years 前
已解决
String Logic 5
Example: 'CAT' --> 'TAC' 'DOG' --> 'GOD' 'MATLAB' --> 'BALTAM' 'ROSY' --> 'YSOR' 'TRUST' --> 'TSURT' 'MOSTLY' --> 'YLTS...
2 years 前
已解决
Laws of motion 4
Given the initial velocity 'u', final velocity 'v' and acceleration 'a', find the distance travelled.
2 years 前
