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    Trigonometry For Trigonometry For Presentation Transcript

    • Trigonometry for By: Mathieu Jean-Lubin Dummies!
    • Basic Terms Coordinate Plane/Quadrants Clockwise: rotation in relation to the movement of a clock. Counter Clockwise: rotation opposite the movement of a clock.
    • A rose by any other name is a Radian Angles can be expressed in two ways: degrees and radians . A radian is the measure of a special central angle whose intercepting arc is the same as the circles radius. To convert degrees to radians: Multiply the degrees by π 180 Make sure π remains in that form!
    • Introduction to Unit Circles In order to find this out, we must use a Unit Circle. A unit circle is : On a coordinate plane with its center at origin With a radius of 1
    • Trigonometric functions on a unit circle! Sine and cosine can be seen on a unit circle as, coordinates, (x,y) What about tangent !? Well with triangles Tan is opp. over adj. In a unit circle tan is the SLOPE! Y = Sin X = cos
    • Reference Angles On a unit circle, angles can be made with one side starting from the x-axis and another side, the TERMINAL SIDE , which ends the angle A reference angle is the acute angle formed by the terminal side and the x-axis. They are formed through a counter clockwise rotation
    • Coterminal Angles Like reference angles, co terminal angles Are formed by terminal sides and the initial side.
    • Trigonmetric Functions There are certain angles whose exact value can be seen!
    • Last but not Least! Trigonometric identities Csc is co secant: The reciprocal of Sine Secant is the reciprocal of Cosine
    • You have COmpleted "Trig" for dummies! Stay tuned for, Passing the MAth B Regents for DUMMIES