kinz5550
22.08.2021 •
Mathematics
Determine the 1st and 2nd degree Taylor polynomials L(x,y) and Q(x,y) for f(x, y) = tan^−1(xy) for (x, y) near the point (1,1).
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Ответ:
Sorry I don't know...:-|
Ответ:
P(correct) = p = 1/3
P(wrong) = q = 1-p = 1-1/3 = 2/3
The general formula for binomial is;
Summation [nCk(p)^k(q)^(n-k)]
Where
n = 9
k = 7,8,9
Substituting;
P(7≤X≤9) = [9C7(1/3)^7(2/3)^2]+[9C8(1/3)^8(2/3)^1]+[9C9(1/3)^9(2/3)^0] = [16/2187]+[2/2187]+[1/19683]=163/19683 ≈ 0.00828
Therefore, the probability of getting atleast 7 question right is 0.00828.