Tương quan các cạnh |
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Tương quan giửa cạnh và góc |
![{\displaystyle {\frac {X}{Z}}=\cos \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/552a1f266717c2c1992feceeb208b81c09f76f58) |
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Sine |
![{\displaystyle {\frac {Y}{Z}}=\sin \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/a9cdc1632b789bb8b5cf3e5aba4e159c31376f33) |
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Cosine |
![{\displaystyle {\frac {1}{X}}=\sec \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/e97f14ddaf0cfcadeb56f81f2def9fd9dfe6e340) |
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Cosecant |
![{\displaystyle {\frac {1}{Y}}=\csc \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/baf5545a7db9d3fdedcee0c7b2f5a4890a6ee6a6) |
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Tangent |
![{\displaystyle {\frac {X}{Y}}=\tan \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/38f741eb2eb3e26a0411c8e276357e57223dd141) |
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Cotangent |
![{\displaystyle {\frac {Y}{X}}=\cot \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/fd2e20ca84be5aaa481ed74f3d84f079887eec81) |
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Cạnh ngang |
![{\displaystyle X}](https://wikimedia.org/api/rest_v1/media/math/render/svg/68baa052181f707c662844a465bfeeb135e82bab) |
![{\displaystyle x-x_{o}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/caef6aebe4bde52ae2aadf14fcf5098c35713ba7) |
![{\displaystyle Z\cos \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/c4f297896cfc2e1c7d925ce29901a7acd51519ed) |
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Cạnh dọc |
![{\displaystyle Y}](https://wikimedia.org/api/rest_v1/media/math/render/svg/961d67d6b454b4df2301ac571808a3538b3a6d3f) |
![{\displaystyle y-y_{o}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/9369e591005d32a665fa74bba7dd75f6dd7254dd) |
![{\displaystyle Z\sin \theta }](https://wikimedia.org/api/rest_v1/media/math/render/svg/7fe44451d5d9518281cc355ae77edcad9ca52aef) |
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Cạnh nghiêng |
![{\displaystyle Z={\sqrt {X^{2}+Y^{2}}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/328e3e1e109d8f0cf69a2768de879c4c0bf58e79) |
![{\displaystyle {\sqrt {(x-x_{o})^{2}+(y-y_{o})^{2}}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/aaef7216cec0409c3feb031a1a4847428b180950) |
![{\displaystyle {\sqrt {(Z\cos \theta )^{2}+(Z\sin \theta )^{2}}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/9485eb096dfcdc4d335cdd35fdb35eb74d65a6ba) |
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Góc nghiêng |
![{\displaystyle \theta =\tan ^{-1}{\frac {Y}{X}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/0bafe5763ec0d128620d14b04238810e0abe4f9e) |
![{\displaystyle \tan ^{-1}{\frac {y-y_{o}}{x-x_{o}}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/dc4fb43bd3fd3d3b763511c6144143aa9743f675) |
![{\displaystyle \tan ^{-1}{\frac {Z\sin \theta }{Z\cos \theta }}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1bfce0758d1434ad5aa518435a9785ddb1984d26) |
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Vector đương thẳng ngang |
![{\displaystyle {\vec {X}}=X{\vec {i}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/a1ab3ad1a084a5300ebd5f4b16d08a505a5b6a55) |
![{\displaystyle (x-x_{o}){\vec {i}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/a050b4a7e28d3bcf0277ed8c94e058e479bdbc0c) |
![{\displaystyle Z\cos \theta {\vec {i}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/795999c9c6462d59191221f065b9ea4b1f7e0af7) |
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Vector đương thẳng dọc |
![{\displaystyle {\vec {Y}}=Y{\vec {i}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/dc8bbd91f70aa49813683b8ad2d46aa4f6288e09) |
![{\displaystyle (y-y_{o}){\vec {i}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/581e4c59c73c50ea780b024c8632b2d6b5089d7a) |
![{\displaystyle Z\cos \theta {\vec {i}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/795999c9c6462d59191221f065b9ea4b1f7e0af7) |
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Vector đương thẳng nghiêng |
![{\displaystyle {\vec {Z}}={\vec {X}}+{\vec {Y}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/652ffaa68144d9506e098f8ea955d2cbe70836bc) |
![{\displaystyle (x-x_{o}){\vec {i}}+(y-y_{o}){\vec {j}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/81f3c62f54016dc10660b1888431e28fe071dfbe) |
![{\displaystyle (Z\cos \theta ){\vec {i}}+(Z\sin \theta ){\vec {j}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/3ed339b871179cb6e2ff535d9483901a0a361797) |
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Diện tích |
![{\displaystyle s={\frac {1}{2}}XY}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ca163cdc96e1903a55a0ae768e6d77d503fb7cf3) |
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Độ dóc |
![{\displaystyle a={\frac {y-y_{o}}{x-x_{o}}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4d294ba67db87afa22ec3c930781cbc2924ac54c) |
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Cắt trục tung |
![{\displaystyle y=0}](https://wikimedia.org/api/rest_v1/media/math/render/svg/094f824655138f6b11d96a0da32e7f0716ba6959) |
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Cắt trục hoành |
![{\displaystyle x=0}](https://wikimedia.org/api/rest_v1/media/math/render/svg/953917eaf52f2e1baad54c8c9e3d6f9bb3710cdc) |
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