Trigonometric ratios of special angles (1/2) | Introduction to Trigonometry | Maths | Khan Academy

In this video, Supriya explains how to find the trigonometric ratios (sin, cos, tan, cosec, sec, and cot) of some special angles: 30 degrees, 45 degrees, and 60 degrees.

For more details on 30-60-90 triangle, watch: https://youtu.be/SFL4stapeUs
For more details on 45-45-90 triangle, watch: https://youtu.be/McINBOFCGH8
To watch the next video, click: https://youtu.be/zGm7Z9v2Vds

For more free lessons & practice - https://www.khanacademy.org/ma....th/in-in-grade-10-nc

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Created by Supriya.