Plane Trigonometry

abscissa acute angle algebraic angle of elevation angular arccos arcsec arcsin arctan central angle complex numbers coördinates cos-¹ cos² cos³ cot2 csc² decimal point definition denominator diagonal digits direction distance due east equal Example Exercise expressed exsec feet in length final zero Find the length find the value formula fundamental relations Furthermore given graph Hence horizontal identity illustrate integer inverse function inverse trigonometric functions Law of Cosines law of sines law of tangents left member logarithm mantissa miles per hour Mollweide's equations multiply negative obtain ordinate plane principal value Prove quadrant radians radius vector related angle right triangle sec² sin-¹ sin² sin³ Solution Solve the triangles standard position subtends tan-¹ tan² tangent terminal side theorem third side tion velocity yards zero not significant