Elements of Plane and Spherical Trigonometry |
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1+tan² A+ cos A+ cos² A+ cot A+ sec A+B+C A+tan add and subtract angle HAC angle of elevation angles of depression Asin b-cos² c's compl characteristic column cos A cos cos¹ cos² A cos² cosine cot A cot cot A+ cot² cotangent dividing equal equations EXAMPLES Find feet high generatrix given gives hence HHHH hypothenuse I.IO initial line less than 45 log cot log sin loga logarithmic sine LOGARITHMS OF NUMBERS mantissa minuend multiply negative perpendicular plane positive radian radius right triangles sec A csc sec² A+ csc² secant side adjacent side opposite similarly sin A cos sin A+ sin B sin sin¹ sin² sin² A cos2 sin² a sin² sin² A+ sin³ spherical triangle Substituting tan-¹ tan² tan² A+ tangent tower trigonometric functions ΙΟ π π бо