Elementary Trigonometry, Plane and Spherical

A-sin A+B)+log A₁ abscissa acute angle adjacent angle algebraic angle opposite angle XOA axis B₁ B₂ C₁ C₁-log C₂ circle computed convex angle coördinates cos A sin cos² cosecant cosine cotangent decreases denoted distance drawing drawn equal equations example figure Find the angles find the functions Form formulas fourth quadrant geometric Given one side given side Given two sides gives hypothenuse inches included angle less than 180 log cos log cot log csc log sec log sin Napier's natural functions opposite angle opposite side opposite the former ordinate perpendicular polygon positive or negative projecting angle ratios regular polygon right triangles rods sec² secant second quadrant sides measure sin A sin sin² sine solution spherical triangle substitution Table tangent third quadrant Third side tion tive triangle measure trigonometric functions values vertex