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trigonometry identity, trigonometry formulae, trigonometric
ratio/value of standard angle
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trigonometry identity, trigonometry formulae, trigonometric
ratio/value of standard angle
Here we start from defining the various trigonometric ratios like
sine, cosine, tan, cosec, sec , cot
then the different types of  identity connecting the trigonometric ratio
are given like sin(A+B) ,

sin(A-B), cos(A+B) , cos(A-B) , tan(A+B) , tanA-B)
multiple angle;
sin 2x, cos2x, tan2x
sin3x, cos3x, tan 3x

product and sum of sines and cosines
sin C + sin D, sin C - sin D,
cos C + cos D , cos C - cos D


sin A cos B ,cos A sin B ,

cos A cos B, sin A sin B

relation connecting sinx cosx and tanx to
tan(x/2) and trigonometric ratio of standard angle is provided
This might be useful for classX, classX1, class XII math students
of cbse, ncert and other state boards and also students who take
AP math .

  trigonometry identity
trigonometry identity
trigonometry identity
trigonometry identity
trigonometry identity
trigonometry identity


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