proof of Important Trigonometric Formula | sin2A | cos2A | tan2A |

This video contains the proof of three important Trigonometric Formula :

sin 2A, cos 2A, tan2A.

Watch the video completely and learn these Formula in a better way.

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Actually, I am creating this type of videos in order to help those Board's students who are in class 12th and having Mathematics as their subject.

So, watch it completely.

Dev Kumar Mandal
From -
Chakulia, East Singhbhum, Jharkhand [INDIA]