Recent questions tagged engineering-mathematics

2 votes
3 answers
1084
Solve the following $\int_{0}^{\infty}e^{-x^2}x^4dx$
0 votes
1 answer
1086
Find the number of perfect matching of the graphYour Answer:105Correct Answer: 9 Status: incorrect
0 votes
1 answer
1087
0 votes
0 answers
1089
Customers arrive at a shop according to a Poisson process at rate λ (/min), where they choose to buy either product A (with probability P) or product B (with probability...
1 votes
1 answer
1093
1 votes
1 answer
1094
When the curves, y = log10x and y = x–1 are drawn in x – y plane. The number of times they intersect for values x ≥ 1 is ________.
0 votes
0 answers
1097
How this is true ?$_{r}^{\frac{n(n-1)}{2}}\textrm{C} = 2^{\frac{n(n-1))}{2}}$
0 votes
1 answer
1102
Consider the random variable X such that it takes values +1,-1 and +2 with probability 0.1 each .Calculate values of the commulative frequencydistribution function F(x) a...
2 votes
1 answer
1103
There are 2 white and 4 black balls in urn A; in urn B, there are 4 white and 7 black balls. If one ball is randomly replaced from A into B and a ball is drawn from B the...
0 votes
0 answers
1104
0 votes
1 answer
1105
0 votes
1 answer
1106
$\lim_{x\rightarrow \pi } (1+\cos x)/\tan ^{2}x$
0 votes
1 answer
1110