Because trigonometric ratios change only when the angle alpha changes, they can be understood as functions that depend on alpha; each ratio has been assigned its own function name: sine, cosine, tangent, cotangent, secant, and cosecant.
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“if these ratios only change when alpha changes, then we can also understand them as functions that depend on alpha. Each of these functions has been given its own name.”
Created: 8/12/2026, 6:18:22 PM
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