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tan^3(alpha) not sure
vyshakhg04:
sin(3a + x)=3sin(a -x)
sin3a*cosx + cos3a*sinx=3 (sina*cosx - cosa*sinx)
sin3a formula =3sinx-4sin^3x
cos3a=4cos^3-3cosx
apply on the equation
3sina*cosx - 4sin^3acosx + 4cos^3x*sinx - 3cosa*sinx=3sina*cosx -3cosa*sinx
solve the above
4cos^3a*sinx= 4sin^3a*cosx
equate u wil get tanx = tan^3a...
samajha...?
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