Question
Integrate with respect to the variable.$$\int \frac{\mathrm{d} \theta}{5+4 \sin \theta}$$
Step 1
Let's substitute $u = \tan\left(\frac{\theta}{2}\right)$. First, we need to express $\sin\theta$ in terms of $u$. We know that $\sin\theta = \frac{2u}{1+u^2}$. Show more…
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