i use logs then i saw it and thought no way this was worth 3 marks .. then i did a plus 1 minus one to the top and ended up with tan ==" ......... fuck my life.I don't know why Q11 (e) is worth 3 marks. It's just a logarithm
shit i missed that question..I don't know why Q11 (e) is worth 3 marks. It's just a logarithm
I did the log base e by factorising 1/2.what did youse get for integration of e^2x one question?
we had to use patrial fractions too eh?
If you get the right answer, it's fine.pretty sure if it's 3 marks they want you to use substitutions and do it fully instead of just going straight to log
yeah i used sub=e^2x ... did u ?I did the log base e by factorising 1/2.
Nope let u =e^x, comes to u/u^2+1yeah i used sub=e^2x ... did u ?
yea I got that1/2 integral 2e^2x / e^2x + 1
=1/2 ln (e^2x + 1)
That's what I did first, then I redid the question ....Nope let u =e^x, comes to u/u^2+1
pop, fastest way (reverse chain rule)1/2 integral 2e^2x / e^2x + 1
=1/2 ln (e^2x + 1)
I left my answer in this form: 1- 1/2(ln.......)what did youse get for integration of e^2x one question?
we had to use patrial fractions too eh?
lol broI left my answer in this form: 1- 1/2(ln.......)
Is that ok?
Did you sub in limits?That's what I did first, then I redid the question ....
I got 1/2 ln (u) - ln (u^2 + 1) from 1 to e^2 (did someone get this?)