Test #1a Concepts Review - Test#1a Concepts Review An Arc...

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Test #1a Concepts ReviewAn Arc Created from Rotation of a Ray Standard PositionTerminal SideTerminal PointQuadrant Angles (your book doesn’t mention; but these are multiples of π/2)o0,π/2, π, /2, 2π & their “coterminals”; n • π/2oUnit Circle Terminal PointsTerminal Points for Important Arcs in QIoπ/6, π/4, π/3Know from relation to symmetry & Pythagorean Thm, Special ∆ Ratios, Memory on Unit CircleReference #’s; t-bar oQI: t-bar=t & QII: t-bar=π – t & QIII: t-bar=t – π & QIV: t-bar= 2π – toNegative too6 Trig F(n)DefinitionsoIn Terms of x, y & ry , x ,y ,x ,r ,r r r x y x yoIn Terms of opposite, adjacent & hypotenuseopp , adj ,opp ,adj ,hyp ,hyp hyp hyp adj opp adj oppoUnit Circle Relationship(cos s, sin s) are points on circleQuadrant Angles (your book doesn’t mention; but these are multiples of π/2)oValues of Sine, Cosine & Tangent (or other 3 too)Reciprocal Identitieso1 , 1 ,1 ,1 ,1 ,1 csc sec cot tan cos sinQuotient Identities (your book makes a distinction here with reciprocal identities)osin t = tan t, cos t

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