Trigonometric Relationships and Identities Quiz Test your knowledge with questions on sine, cosine, tangent, and trigonometric identities. Explore concepts of amplitude, period, and quadrant relationships.
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sin^2(x) = 1 - cos^2(x)
tan(x) = sin(x)/cos(x)
1 + tan^2(x) = sec^2(x)
cos(x + y) = cos(x)cos(y) - sin(x)sin(y)
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1 + tan^2(x) = sec^2(x)
cot(x) = cos(x)/sin(x)
sin(x + y) = sin(x)cos(y) + cos(x)sin(y)
1 - cos^2(x) = sin^2(x)
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sin^2(x) + cos^2(x) = 1
tan(x) = sin(x)/cos(x)
1 + cot^2(x) = csc^2(x)
sec^2(x) = 1 + tan^2(x)
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