![Case study-2: There are in total six trignometric ratios, namely sine(sin), cosine (cos), tangent (tan), cosecant (cosec), secant(sec) and cotagent(cot). The trigonometric fuctions cosecant. Secant and cotagent are simply the reciprocals of Case study-2: There are in total six trignometric ratios, namely sine(sin), cosine (cos), tangent (tan), cosecant (cosec), secant(sec) and cotagent(cot). The trigonometric fuctions cosecant. Secant and cotagent are simply the reciprocals of](https://d10lpgp6xz60nq.cloudfront.net/physics_images/OWP_QAP_21_00X_MAT_PP3_E03_006_Q01.png)
Case study-2: There are in total six trignometric ratios, namely sine(sin), cosine (cos), tangent (tan), cosecant (cosec), secant(sec) and cotagent(cot). The trigonometric fuctions cosecant. Secant and cotagent are simply the reciprocals of
How can someone find the values of the following, in a simplified surd form without using tables or calculators: sin 135, cos 210 and tan 240? - Quora
![trigonometry - Easy way of memorizing values of sine, cosine, and tangent - Mathematics Stack Exchange trigonometry - Easy way of memorizing values of sine, cosine, and tangent - Mathematics Stack Exchange](https://i.stack.imgur.com/OBSn1.gif)