**TI83F* AppVariable file 12/24/08, 18:44 GLGE08nav 9AE51D1EC13445C5B24A00CF0B737DCFGLGE08.9GLGE081  angle of depression !aangle of depression:The angle formed by a horizontal line of sight and a line of sight below it. angle of elevation  !_angle of elevation:The line formed by a horizontal line of sight and a line of sight above it. component formRcomponent form:A vector expressed as an ordered pair, (change in x, change in y). cosinecosine:In a right triangle with acute angle A, the cosine of A = (the measure of the leg adjacent to A) / (the measure of the hypotenuse).  directionndirection:The measure of the angle that a vector forms with the positive x-axis or any other horizontal line. geometric mean]geometric mean:For any positive numbers a and b, the positive number x such that a/x = x/b. inverse cosineinverse cosine:The inverse function of cosine, or cos^-1. If the cosine of an acute A is equal to x, then cos^-1 x is equal to the measure of A.  inverse sineinverse sine:The inverse function of sine, or sin^-1. If the sine of an acute A is equal to x, then sin^-1 x is equal to the measure of A.  inverse tangentinverse tangent:The inverse function of tangent, or tan^-1. If the tangent of an acute A is equal to x, then tan^-1 x is equal to the measure of A.  Law of Cosines Law of Cosines:Let ABC be any triangle with a, b, and c representing the measures of sides opposite the angles with measures A, B, and C respectively. Then the following equations are true.a^2=b^2 +c^2 - 2bc cos Ab^2=a^2 +c^2 - 2ac cos Bc^2=a^2 +b^2 - 2ab cos C   Law of SinesLaw of Sines:Let ABC be any triangle with a, b, and c representing the measures of sides opposite the angles with measures A, B, and C respectively. Then, (sin A/a) = (sin B/b) = (sin C/c).   magnitude"magnitude:The length of a vector.  parallelogram methodparallelogram method:A method used to find the resultant of two vectors in which you place the vectors at the same initial point, complete a parallelogram, and draw the diagonal. Pythagorean tripleGPythagorean triple:Whole numbers that satisfy the Pythagorean Theorem.  resultant"resultant:The sum of two vectors. sinesine:In a right triangle with acute angle A, the sine of A = (the measure of the leg opposite A) / (the measure of the hypotenuse). standard positionGstandard position:When the initial point of a vector is at the origin. tangenttangent:In a right triangle with acute angle A, the tangent ofA = (the measure of the leg opposite A) / (the measure of the leg adjacent to A). triangle methodtriangle method:A method used to find the resultant of two vectors in which the second vector is connected to the terminal point of the first and the resultant is drawn from the initial point of the first vector to the terminal point of the second vector. trigonometric ratioPtrigonometric ratio:The ratio of the measures of two sides of a right triangle.  trigonometryjtrigonometry:The study of the properties of triangles and trigonometric functions and their applications. vectorevector:A directed segment representing a quantity that has both magnitude, or length, and direction.8`>|ϟ>| ` AP& DA Ji♓$`J BRdAM `0 0 0`` 0@(f!RL4q* T!*0U2b ɑZJ` >|ϟ>|