Question

The process of conversion from sum or difference into product is called __​

Answer 1

Answer:

The process of conversion from sum or difference into product is called identities

Answer 2

The process of conversion from sum or difference into the product is called transformation.

(I) the amount of two sines into a result of a couple of sines and cosine

                            sin (X + Y) + sin (X - Y) = 2 sin X cos Y

(ii) the distinction of two sines into a result of a couple of cosine and sine

                            sin (X + Y) - sin (X - Y) = 2 cos X sin Y

(iii) the amount of two cosines into a result of two cosines

                            cos (X + Y) + cos (X - Y) = 2 cos X cos Y

(iv) the distinction of two cosines into a result of two sines

                            cos (X - Y) - cos (X + Y) = 2 sin X sin Y

(a), (b), (c) and (d) are considered as formulae of transformation from addition or subtraction to product.

The total-to-product equations permit us to communicate amounts of sine or cosine as products. These recipes can be gotten from the product-to-aggregate identities.