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Topic:-
Trigonometry
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Trigon metric Identities
sin²θ + cos²θ = 1
sec²θ - tan²θ = 1
csc²θ - cot²θ = 1
Trigometric relations
sinθ = 1/cscθ
cosθ = 1 /secθ
tanθ = 1/cotθ
tanθ = sinθ/cosθ
cotθ = cosθ/sinθ
Trigonmetric ratios
sinθ = opp/hyp
cosθ = adj/hyp
tanθ = opp/adj
cotθ = adj/opp
cscθ = hyp/opp
secθ = hyp/adj
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