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Anonymous users2024-02-07Trigonometric formulas include the sum sum formula, the sum difference product formula, the triple angle formula, the sine double angle formula, the cosine double angle formula, the cosine theorem, etc.
1. Formula for the sum of products. sinα·cosβ=(1/2)*[sin(α+sin(α-cosα·sinβ=(1/2)*[sin(α+sin(α-cosα·cosβ=(1/2)*[cos(α+cos(α-sinα·sinβ=-(1/2)*[cos(α+cos(α-
2. Sum difference product formula. sinα+sinβ=2sin[(α/2]·cos[(α/2];sinα-sinβ=2cos[(α/2]·sin[(α/2]cosα+cosβ=2cos[(α/2]·cos[(α/2];cosα-cosβ=-2sin[(α/2]·sin[(α/2]
3 Triple angle formula. sin3α=3sinα-4sin^3α：cos3α=4cos^3α-3cosα
4. The trigonometric relationship between the sum of the two angles and the difference sin( +=sin cos +cos sin ; sin(α-=sinαcosβ-cosαsinβ;cos(α+=cosαcosβ-sinαsinβ;cos(α-=cosαcosβ+sinαsinβ;tan(α+=(tanα+tanβ)/(1-tanα·tanβ);tan(α-=(tanα-tanβ)/(1+tanα·tanβ)
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Anonymous users2024-02-06Trigonometric formulas include the product and acacia excitation formula, the sum difference product formula, the triple angle formula, the sine double angle formula, the cosine double angle formula, the cosine theorem, etc.
1. Accumulation and differential collapse formulas. sinα·cosβ=(1/2)*[sin(α+sin(α-cosα·sinβ=(1/2)*[sin(α+sin(α-cosα·cosβ=(1/2)*[cos(α+cos(α-sinα·sinβ=-1/2)*[cos(α+cos(α-
2. Sum difference product formula. sinα+sinβ=2sin[(α2]·cos[(α2];sinα-sinβ=2cos[(α2]·sin[(α2]cosα+cosβ=2cos[(α2]·cos[(α2];cosα-cosβ=-2sin[(α2]·sin[(α2]
3 Triple angle formula. sin3α=3sinα-4sin^3α：cos3α=4cos^3α-3cosα
4. The function relationship between the two angles and the difference between the triangle lead socks sin( +sin cos +cos sin; sin(α-sinαcosβ-cosαsinβ;cos(α+cosαcosβ-sinαsinβ;cos(α-cosαcosβ+sinαsinβ;tan(α+tanα+tanβ)/1-tanα·tanβ);tan(α-tanα-tanβ)/1+tanα·tanβ)
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Anonymous users2024-02-05All the formulas about trigonometric functions are as follows:
Accumulation and difference formulas.
sinα·cosβ=(1/2)*[sin(α+sin(α-cosα·sinβ=(1/2)*[sin(α+sin(α-cosα·cosβ=(1/2)*[cos(α+cos(α-sinα·sinβ=-1/2)*[cos(α+cos(α-
and the difference product formula.
sin +sin =2sin[(2]·cos[(2]sin -sin =2cos[(2]·sin[(2]cos +cos =2cos[(2]·cos[(2]cos -cos =-2sin[(2]·sin[(2]·sin[(2]·sin[(2]·sin[(2]) and the difference product formula.
sinα+sinβ=2sin[(α2]·cos[(α2]sinα-sinβ=2cos[(α2]·sin[(α2]<>
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