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Basic Trigonometry – A Quick Recap

Last updated at March 16, 2023 by

Sin, cos, tan

Basic Trigonometry Quick Recap.jpg

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Value of sin, cos, tan at different angles

Basic Trigonometry – A Quick Recap - Part 2

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Basic Identities

cos 2 Β ΞΈ + sin 2 Β ΞΈ = 1

1 + tan 2 Β ΞΈ = sec 2 Β ΞΈ

1 + cot 2 Β ΞΈ = cosec 2 Β ΞΈ

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Transcript

In right triangle ABC sinβ‘πœƒ= (𝑠𝑖𝑑𝑒 π‘œπ‘π‘π‘œπ‘ π‘–π‘‘π‘’ π‘‘π‘œ π‘Žπ‘›π‘”π‘™π‘’ πœƒ)/π»π‘¦π‘π‘œπ‘‘π‘’π‘›π‘’π‘ π‘’ cosβ‘πœƒ= (𝑠𝑖𝑑𝑒 π‘Žπ‘‘π‘—π‘Žπ‘π‘’π‘›π‘‘ π‘‘π‘œ π‘Žπ‘›π‘”π‘™π‘’ πœƒ)/π»π‘¦π‘π‘œπ‘‘π‘’π‘›π‘’π‘ π‘’ tanβ‘πœƒ= (𝑠𝑖𝑑𝑒 π‘œπ‘π‘π‘œπ‘ π‘–π‘‘π‘’ π‘‘π‘œ π‘Žπ‘›π‘”π‘™π‘’ πœƒ)/(𝑠𝑖𝑑𝑒 π‘Žπ‘‘π‘—π‘Žπ‘π‘’π‘›π‘‘ π‘‘π‘œ π‘Žπ‘›π‘”π‘™π‘’ πœƒ) coπ‘ π‘’π‘β‘πœƒ= 1/sinβ‘πœƒ π‘ π‘’π‘β‘πœƒ= 1/cosβ‘πœƒ cotβ‘πœƒ= 1/tanβ‘πœƒ

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.