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precalc U6 mini quiz

QuestionAnswer
reciprocal of sinx: 1/cscx
remember, write theta or x after the identity! you cannot have a blank identity! ok
reciprocal of cscx: 1/sinx
reciprocal of cosx: 1/secx
reciprocal of secx: 1/cosx
reciprocal of tanx: 1/cotx
reciprocal of cotx: 1/tanx
quotient of tanx: sinx/cosx
quotient of cotx: cosx/sinx
pythagoren identities: cos^2x+sin^2x = 1 1+ tan^2x = sec^2x 1+cot^2x = csc^2x i tan by the sea i cottan by the cosea
sin(A+B) = SinACosB + SinBCosA
cos(A+B) = CosACosB - SinASinB
sin(A-B) = SinACosB - SinBCosA
cos(A-B) = CosACosB + SinASinB
sin2A = 2SinACosA
cos2A = cos^2A-sin^2A 2cos^2A - 1 1- 2sin^2A
be VERY careful if it asks u for reciprocal or quotient!!! ok
if a graph reaches its min b4 its max... it requires a reflection (negative) over the x-axis!
Created by: acuda25
 

 



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