If $\lim _{x \rightarrow 0}\left[1+x \ln \left(1+b^2\right)\right]^{1 / x}=2 b \sin ^2 \theta, b>0$ and $\theta \in(-\pi, \pi]$, then the value of $\theta$ is
Hello 👋 Welcome to Competishun – India’s most trusted platform for JEE & NEET preparation. Need help with JEE / NEET courses, fees, batches, test series or free study material? Chat with us now 👇