Topic 10 0.0 / 5 ? MathematicsTrigonometric identities and equationsASEdexcel Created by: Jemma1494Created on: 04-06-21 14:57 Sin rules sin(x) = sin(180-x) sin(x) = cos(90-x) 1 of 8 Cos rules cos(x) = cos(360-x) 2 of 8 Tan rules tan(x) = tan(180+x) 3 of 8 Exact sin values sin0 = 0 sin30 = 1/2 sin45 = √2/2 sin60 = √3/2 sin90 = 1 4 of 8 Exact cos values cos0 = 1 cos30= √3/2 cos45 = √2/2 cos60 = 1/2 cos90 = 0 5 of 8 Exact tan values tan0 = 0 tan30 = √3/3 tan45 = 1 tan60 = √3 tan90 = x 6 of 8 Tan rule tan θ = sin θ/ cos θ 7 of 8 Sin and cos rule sin^2 θ + cos^2 θ = 1 8 of 8
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