![]() ![]() Express Sine in Terms of Tangent - dummies. CosSinCalc Triangle Calculator calculates the sides, angles, altitudes, medians, angle bisectors, area and circumference of a triangle. To find the value of functions for angles more than 90 degrees, we follow a set of rules known as cast rules. cosθ = adjacent hypotenuse tangent function (tan) Tanθ = sinθ cosθ Quadrant and Cast Rule As stated above, the angles other than the 90 degrees angle in a right-angled triangle are acute (i.e, less than 90 degrees). … Value of Cos 120 Degree and Other Trigonometric Angles. Enter all known variables (sides a, b and c angles A and B) into the text boxes. ![]() Trigonometry Calculator - Right Triangles. Sin, cos, tan, cot, sec, cosec trigonometric calculator.
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