Small-angle approximation
= Small-angle approximation
{wiki}
As $x\to0$, the <limit> $\sin x/x\to1$ gives $\sin x\sim x$, while the <Taylor series> gives $\arcsin x\sim x$ and $\cos x\sim1-x^2/2$.
= Small-angle approximation
{wiki}
As $x\to0$, the <limit> $\sin x/x\to1$ gives $\sin x\sim x$, while the <Taylor series> gives $\arcsin x\sim x$ and $\cos x\sim1-x^2/2$.