Algebra 2<br />Introduction to Trigonometry<br />A right triangle has a ____________________________________ angle.<br />Y...
A213-1 trig intro notes
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A213-1 trig intro notes

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A213-1 trig intro notes

  1. 1. Algebra 2<br />Introduction to Trigonometry<br />A right triangle has a ____________________________________ angle.<br />You only have a ____________________________________ when you have a right triangle, and it is the side _______________________________ the right angle, and it is the _________________________ side of a right triangle.<br />What is the Pythagorean theorem?<br />What does SOHCAHTOA stand for?<br />sin = -------------------cos = --------------------tan = ----------------------<br />Copy the example triangle from the video:<br />sin θ =cos θ =tan θ =<br />sin x =cos x =tan x =<br />EX1: find sin, cos, and tan of θ and x for the triangle below:<br />1028700179705θ0θ1257300865505x0x114300010941055058001005226051201212573005226051313114300065405<br />Reciprocal Functions<br />csc = --------------------sec = --------------------cot = -------------------<br /> The reciprocal of sin is called __________________________.<br />The reciprocal of cos is called __________________________.<br />The reciprocal of tan is called __________________________.<br />Find csc, sec, and cot of θ from EX1.<br />HW p. 772 (15 – 21 all)<br />

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