Mathematics is not as hard as it seems to be. According to me its name should be “MATHEMAGIC” because a lot of magic is involved in solving a simple question.I would like to share some analytic way of learning the “sin”, “cos” and “tan” values .
See the picture below carefully and the angle in degree assigned to each finger of our right hand in palm up position.
Suppose ,we want to know the value of cos60 then the value will be equal to the “under root of the no. of fingers on the left side of selected finger and divide it by 2.”(as shown in figure below)
Image
Similarly,for sin60 ,it would be equal to “under root of the no.of fingers on the right side of selected finger and divide it by 2”
For tan60 ,simply do sin60/cos60.
Hope you have enjoyed.
Thanks for reading!
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I always found remembering the base triangles the best idea, but this is a good trick too!
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