根号2cosx-根号6sinx=````````

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根号2cosx-根号6sinx=````````根号2cosx-根号6sinx=````````根号2cosx-根号6sinx=````````原式=2√2(cosx*1/2-sinx*√3/2)=2

根号2cosx-根号6sinx=````````
根号2cosx-根号6sinx=
````````

根号2cosx-根号6sinx=````````
原式=2√2(cosx*1/2-sinx*√3/2)
=2√2(cosxcosπ/3-sinxsinπ/3)
=2√2cos(x+π/3)