Pre-Calculus Trigonometric Identities Test Questions Answered Correctly Latest Update 2025-2026
cscθ - Answers1/sinθ
secθ - Answers1/cosθ
cotθ - Answers1/tanθ OR cosθ/sinθ
tanθ - Answerssinθ/cosθ
cotθ - Answerscosθ/sinθ
sin²θ+cos²θ - Answers1
tan²θ+1 - Answerssec²θ
1+cot²θ - Answerscsc²θ
sin(π/2-θ) - Answerscosθ
cos(π/2-θ) - Answerssinθ
tan(π/2-θ) - Answerscotθ
csc(π/2-θ) - Answerssecθ
sec(π/2-θ) - Answerscscθ
cot(π/2-θ) - Answerstanθ
sin(-θ) - Answers-sinθ
cos(-θ) - Answerscosθ
tan(-θ) - Answers-tanθ
csc(-θ) - Answers-cscθ
sec(-θ) - Answerssecθ
cot(-θ) - Answers-cotθ
sin(u+v) - Answerssin(u)cos(v)+cos(u)sin(v)
sin(u−v) - Answerssin(u)cos(v)−cos(u)sin(v)
cos(u−v) - Answerscos(u)cos(v)+sin(u)sin(v)
cscθ - Answers1/sinθ
secθ - Answers1/cosθ
cotθ - Answers1/tanθ OR cosθ/sinθ
tanθ - Answerssinθ/cosθ
cotθ - Answerscosθ/sinθ
sin²θ+cos²θ - Answers1
tan²θ+1 - Answerssec²θ
1+cot²θ - Answerscsc²θ
sin(π/2-θ) - Answerscosθ
cos(π/2-θ) - Answerssinθ
tan(π/2-θ) - Answerscotθ
csc(π/2-θ) - Answerssecθ
sec(π/2-θ) - Answerscscθ
cot(π/2-θ) - Answerstanθ
sin(-θ) - Answers-sinθ
cos(-θ) - Answerscosθ
tan(-θ) - Answers-tanθ
csc(-θ) - Answers-cscθ
sec(-θ) - Answerssecθ
cot(-θ) - Answers-cotθ
sin(u+v) - Answerssin(u)cos(v)+cos(u)sin(v)
sin(u−v) - Answerssin(u)cos(v)−cos(u)sin(v)
cos(u−v) - Answerscos(u)cos(v)+sin(u)sin(v)
