Plane Trigonometry

acute angle adjacent leg angle of depression angle of elevation axis base circle colog cologarithm column cos(x cos² cos²x cotangent decimal point determine disregarding the decimal distance Draw slide equal equation exponent expressed Find the area Find the numerical find the value function of angle given angle graph Hence hypotenuse identity interpolation inverse trigonometric functions isosceles triangle Law of Cosines Law of Sines Law of Tangents left index length mantissa method of notation mils Move hairline Multiply negative numerical value observer one-half an angle opposite leg perpendicular plane polygon problems proportional Pythagorean theorem quotient radians radius ratio right index right triangle scale secant second quadrant side adjacent side opposite significant figures Simplify sin(x sin² slide rule Solution Solve special angles Substituting subtracting table of values tangent value of log vertex