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visits member for 1 year, 11 months
seen Jan 1 at 0:31

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%?
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
comment Integral of a weird trigonometric function
how did you get this identity?
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?
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
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 :/
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' ?
Nov
24
comment combinatorics: probability of picking elements
What I don't know how to do is your last sentence..
Oct
30
comment mathematical induction with functions
ok thanks guys, I messed myself up with this recursion lol