Elementary Trigonometry, Plane and Spherical

A-sin A+B)+log a+b+c A₁ abscissa acute angle adjacent angle algebraic angle opposite Asin axis B₁ B₂ c=log C₁ C₁-log C₂ circumference computed convex angle coördinates cos a sin cos² cosecant cosine cotangent denoted distance drawing drawn equal equations of 152 example feet figure Find the angles find the functions Form formulas fourth quadrant geometric greater than 180 hypothenuse included angle less than 180 line OA log cos log cot log csc log sec log sin log tan modulus natural functions opposite angle opposite side opposite the former perpendicular plane triangle points B₁ polar radius projecting angle Results right triangles rods secant second member second quadrant semi-circumference sides measure sin A cos sin A sin sin² sine solution spherical triangle substitution subtracting Table taken tangent terminal line Third side tion tive triangle measure vertex whence