Mathematics
OpenStudy (anonymous):

How to find sin, cos, and tan without calculator?

OpenStudy (anonymous):

use the tables available for such calculations....

OpenStudy (saifoo.khan):

Let's say, you are given a fraction $\sin \theta = \frac 35$ Now the ratio of sin is, opp/hyp. So if we draw a triangle, it will look something like, |dw:1331678475210:dw|

OpenStudy (anonymous):

Try Clark's Table available in printed form...

OpenStudy (saifoo.khan):

Now.. find the 3rd side using a Pythagoras theorm. $5^2 - 3^2 = P ^2$$25 - 9^2 = P^2$$P = 4$ So now we have something like, |dw:1331678599940:dw|