How do you evaluate trigonometric functions in the four quadrants, using reference angles. Watch this video to learn! I am a math educator and through this simple technique, you will learn how easy it is to evaluate say , cosec 1450 or any other value.

You will learn the concept of A S T C or “ALL STUDENTS TAKE COFFEE” or any other phrase of your choice. A great resource for math students , mainly Class 11, because that is when this topic is introduced.

So, do subscribe to my channel. You could also contact me for online classes, individual or group as you may need.

So, thank you for watching. Which phrase would you like to use for “ ASTC” ?

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