how we get this sine cube x
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Hey actually sin3x=3sinx-4sin^3x
Now u see the explanation given below.thats proof of sin3A
So,if u re arrange sin3x u get sin^3x
Sin3x=3sinx-4sin^3x.
4 sin^3x= 3sinx-sin3x
So sin^3x=1/4(3sinx-sin3x)
Hope it helps plz mark my answer brainliest.
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