Thursday, August 12, 2010

sine cosine tangent chart

sine cosine tangent chart

The sine term and cosine term is a ratio of sides in the right angled triangles is called tangent tables. The three relations as follow First, tan A = `(sin A)/ (cos A)` Second, assume sin A = `p/r`. Third, cos A = `q/r` Dividing `p/r` by `q/r` and canceling the r's that appear, we conclude that tan A = `p/q`. That the tangent is the opposite side divided by an adjacent side: Tan A = `(opp)/(adj)`How to find Tan values of angles in radiansAny radian angle can be converted to degree and vise versa.Î radian = 180 degreesWe know the value of Î is 3.14 approximatelySo 1 radian = 180 degree / 3.14 = 52.325 degreesNow we can find any radian measure with this conversion factor in hand. A Tangent tables by using sine term and cosine term The two triangles PST and PQR are similar, we have `(TS)/(PT) = (RQ) / (PR)`.But Here TS = tan A,PT= 1, RQ = sin A, and PR = cos PQ. Therefore we have derived the fundamental identity Tan A = `( sin A) / (cos A)`

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