Trigonometric functions - Wikipedia, the free encyclopedia

Trigonometric functions - Wikipedia, the free encyclopedia

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日期:2025-10-08
Thus, as θ goes from 0 up to a right angle, sin θ goes from 0 to 1, tan θ goes from 0 to ∞, and sec θ goes from 1 to ∞. The cosine, cotangent, and cosecant ......看更多