Which is the correct answer?

September 19, 2024, 11:08 AM

Started by Yoni, March 28, 2003, 12:03 PM

1) 1 answer is incorrect, the others are correct: 0 (0%)
2) 2 answers are incorrect, the others are correct: 0 (0%)
3) 3 answers are incorrect, the others are correct: 0 (0%)
...: 1 (10%)
n-2) n-2 answers are incorrect, the others are correct: 0 (0%)
n-1) n-1 answers are incorrect, the others are correct: 2 (20%)
n) n answers are incorrect, the others are correct: 4 (40%)
INT[0,+infinity](dt/(sqrt(t)(e^(-t))))=2sqrt(SUM[k=1,+infinity](((-1)^(k+1))/(2k-1))): 3 (30%)