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Jul
2
awarded  Curious
Dec
6
revised Great Monty Hall application in real life?
deleted 182 characters in body
Dec
6
awarded  Commentator
Dec
6
comment Great Monty Hall application in real life?
even it's a different situation, is it possible to prove MATHEMATICALLY our situation gives 50%?
Dec
6
revised Great Monty Hall application in real life?
added 8 characters in body; edited title
Dec
6
asked Great Monty Hall application in real life?
Feb
17
comment Integral of a weird trigonometric function
@Brain M.Scott Hi, I solved the integral, it gives 1/(2*sqrt(2))ln|csc(2*x+pi/4)-cot(2*x+pi/4)|. Wolfram Alpha gives an another integral, so to check if they are equal, I plugged x=3 in both equations and see if they both give the same answer.. but it didn't, do you know why?
Feb
17
accepted Integral of a weird trigonometric function
Feb
17
comment Integral of a weird trigonometric function
how did you get this identity?
Feb
17
asked Integral of a weird trigonometric function
Feb
3
accepted How to find the equation? (Integral problem)
Feb
3
comment How to find the equation? (Integral problem)
i got f(x)=6x, but what to do next? Like what does it help to find a?
Feb
3
comment How to find the equation? (Integral problem)
but why the question gives the right side as f(t)dt and not f(x)dx?
Feb
3
asked How to find the equation? (Integral problem)
Jan
17
comment Finding the initial velocity using calculus
by the way, I'm just wandering, what will the graph of velocity as a function of time look like?
Jan
17
accepted Is this log form simple enough?
Jan
17
accepted combinatorics: probability of picking elements
Jan
17
comment Finding the initial velocity using calculus
i got 39.05 as final answer with physics formula, but dunno how to use calculus to solve this :/
Jan
17
asked Finding the initial velocity using calculus
Nov
25
comment combinatorics: probability of picking elements
Sorry, I meant I know how to calculate the total number of ways of choosing 5 elements in 6, but after that, how do we calculate the number of elements containing 'a' and 'b' ?