かほうていり
加法定理
1. trigonometric addition formulasMathematics
2. Addition theoremIn mathematics, an addition theorem is a formula such as that for the exponential function e = e·e that expresses, for a particular function f, f(x + y) in terms of f(x) and f(y). Slightly more generally, as is the case with the trigonometric functions sin and cos, several functions may be involved; this is more apparent than real, in that case, since there cos is an algebraic function of sin (in other words, we usually take their functions both as defined on the unit circle).
Read “Addition theorem” on English Wikipedia
Read “加法定理” on Japanese Wikipedia
Read “Addition theorem” on DBpedia
Read “Addition theorem” on English Wikipedia
Read “加法定理” on Japanese Wikipedia
Read “Addition theorem” on DBpedia
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