(Chapter 1: Review) 1.30 “THE Table”We will use our knowledge of the 30±-60±-90±and 45±-45±-90±special triangles to construct THE Table below. The unit circle approach is used to find the trig values for quadrantal angles such as 0±and 90±. Key Angles ±: Degrees, (Radians) sincostan=sincosIntersection Point Pcos,sin()0±, (0) 02=0101=01, 030±, 6²³´µ¶·2=12321/2/2=13=3332,12±²³´µ¶45±, 4²³´µ¶·22=22222=122,22±²³´µ¶60±, 3²³´µ¶·32=32123=312,32±²³´µ¶90±, 2²³´µ¶·42=1010is undefined0, 1Warning: 5is not a “special” angle. Warning: Always make sure what mode your calculator is in (DEG
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This note was uploaded on 12/29/2011 for the course MATH 150 taught by Professor Sturst during the Fall '10 term at SUNY Stony Brook.