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Question Number 35470 by tanmay.chaudhury50@gmail.com last updated on 19/May/18

$$provesin{0}^o=0andcos{0}^o=1$$

Answered by $@ty@m last updated on 19/May/18

$$Wehave$$$$When\theta istoosmall,$$$$\theta =\frac{l}{r}....\left(i\right)$$$$\sin \theta \approx \sin 0$$$$l\approx 0$$$$\therefore from\left(i\right)$$$$\sin 0=\frac{0}{r}$$$$\sin 0=0$$$$Similarly$$$$\cos \theta \approx \cos 0$$$$\cos 0=\frac{r}{r}$$$$\cos 0=1$$

Answered by $@ty@m last updated on 19/May/18

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