What should I do to integrate this?
$$\int \frac{4}{3+cosx} dx$$

Question

freckles · Answer

Step 1: Multiply top and bottom by conjugate of the bottom

amistre64 · Answer

what techniques you got at your disposal?

freckles · Answer

It will look juicy to us with a bottom with one term :)

callisto · Answer

Got it. So, would it be similar if I change 1 on the top to 4 and 1 in the bottom to 3?

lgbasallote · Answer

lol freckles juicy :P

callisto · Answer

Perhaps I shall rewrite the question first.

callisto · Answer

Latex fails :S
This one:
$$\int \frac{4}{3+cosx} dx$$

lgbasallote · Answer

is that the question now?

freckles · Answer

So this is a new problem you are saying?
And yes you do multiply  the conjugate of bottom on both top and bottom

lgbasallote · Answer

but pull out the constant first so it's not confusing :P

lgbasallote · Answer

i see this wont be as juicy as before...

callisto · Answer

$$4\int \frac{3-cosx}{9-cos^2x} dx$$
Not something nice to me :(

freckles · Answer

wait one sec

callisto · Answer

Actually, this is the question I wanted to ask. But... start  with an easy one first is pretty good.

anonymous · Answer

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