Carrotsticks
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You can jump from the question to the (correct) answer with no penalty.I used to do this way....but i saw they make a U substitution in past papers![]()
You can jump from the question to the (correct) answer with no penalty.I used to do this way....but i saw they make a U substitution in past papers![]()
You can jump from the question to the (correct) answer with no penalty.
Your markers will not like it (mine hated it), but they have no reason to penalise you.About this, in a test, how many lines would you recommend doing it in. Do you think markers wouldn't like it in just one line or is that fine?
Which one? Do you want e,f or both?View attachment 24973
someone do this plzzz
Which one? Do you want e,f or both?
Make your own thread, best to not hijack somebody else's.Can someone help me with:
Integrate: dx/(4+5sin^2(x)) and Integrate (0 to pi): sinx/(1+sinx)
And you should be able to finish from there. My reasoning: the question told me to make the numerator rational. I know that for a square root to be rational, the argument needs to be a square. So if I multiply the top and bottom by the numerator, the square root cancels on the numerator and I can finish the integral.
First one use t substitute with t = tan x. Or use normal substitution. (Cbb, just typed a long latex proof)Can someone help me with:
Integrate: dx/(4+5sin^2(x)) and Integrate (0 to pi): sinx/(1+sinx)
He multiplied the top and bottom by the conjugate (5-x)i can do the rest; but how did u get (5-x)(5+x) at the bottom>
1. Use double angle formula to change sin^2x in terms of cos2xCan someone help me with:
Integrate: dx/(4+5sin^2(x)) and Integrate (0 to pi): sinx/(1+sinx)
Yeah I realised, argh. I keep doing that.you lost a factor of cos(x) spiral.
wow, very neat writing.is that right???