In this Part - II video you will know how all rest trigonometric formulas drive only by one formula Cos(x + y ) = Cosx.Cosy -- Sinx.Siny. After watching both parts of this video you can easily solve Class -11, EX - 3.3 of NCERT maths.
This video is very helpful for CBSE and ICSE class 11, 12 and IITJEE students.
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