Can someone show the working out to this question for me....for some reason im not getting it right.
Kate plans to retire at age 60. At that time, she wants to have enough to invest in a travel account so that she can go on a world trip every four years until she reaches 76, i.e. at ages 64...
this is davidyin92 here (the guy who posted the question)
i'm more interested in its application to society. so then, would it be better to do it through a maths course or an economics course - any recommendations?
as for the "it" --i was reading wikipedia =]
Just to ease my nerves, can anyone tell me what kind of questions i can expect at the interview. Is it going to be one of those behavioural things (based on situation and then solve)? or those generic questions (like how, why)?
isn't the orbital velocity only affected by the distance between the satellite and the planet? (according the Kepler's 3rd law)
sorry for digging this thread back up. just curious.
using subsitution the answer is wrong, but from what i know, it should work
integral (sinx.cosx)
=integral (u) let u=sinx, du=cosx dx
=1/2u^2 +c
=1/2sin^2x +c
=1/2[1/2(1-cos2x)] +c
=1/4-1/4cos2x +c
but then there's also,
integral (sinx.cosx)
=1/2 integral (sin2x)
=1/2.-1/2cos2x...