Category:Tangent Half-Angle Substitution for Cosine
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This category contains pages concerning Tangent Half-Angle Substitution for Cosine:
- $\cos 2 \theta = \dfrac {1 - \tan^2 \theta} {1 + \tan^2 \theta}$
Pages in category "Tangent Half-Angle Substitution for Cosine"
The following 2 pages are in this category, out of 2 total.